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is heptane aromatic, alkene, or alkaneis 1-hexene alkene, aromatic, or

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Get college assignment help at Smashing Essays Question is heptane aromatic, alkene, or alkaneis 1-hexene alkene, aromatic, or alkaneis toluene aromatic ,alkene,or alkane

A bicycle tire is filled with air to a pressure

Question A bicycle tire is filled with air to a pressure of 75. psi at a temperature of 19 degrees celcius. Riding the bike on asphalt on a hot day increases the temperature of the tire to 58 degrees celcius. The volume of the tire increases by 4.0%. What is the new pressure in the bicycle tire?

“Isooctane”, a fuel used in gasoline engines because it has

Question “Isooctane”, a fuel used in gasoline engines because it has an antiknock octane rating of 100, has a density of .6919 g/cm^(-3). How many pounds would 20.4 gallons of this fuel weigh?

a sample of gas occupies 17 mL at -112 C

Question a sample of gas occupies 17 mL at -112 C . What volume does the sample occupy at 70 C ?

How much heat is absorbed in the complete reaction of

Question How much heat is absorbed in the complete reaction of 3.00 grams of SiO2 with excess carbon in the reaction below?

When 1 mole of H2(g) reacts with C2H4(g) to form

Question When 1 mole of H2(g) reacts with C2H4(g) to form C2H6(g) according to the following equation, 137 kJ of energy are evolved. What is the value of q?

Calculate the mass of nitrogen dissolved at room temperature in

Question Calculate the mass of nitrogen dissolved at room temperature in an 94.0 home aquarium. Assume a total pressure of 1.0 and a mole fraction for nitrogen of 0.78.

A graduated cylinder contains 22.0 mL of water. What is

Question A graduated cylinder contains 22.0 mL of water. What is the new water level after 29.2 g of silver metal with a density of 10.5 g/mL is submerged in the water?

how many grams of carbon dioxide are produced when 2.50g

Question how many grams of carbon dioxide are produced when 2.50g of sodium hydrogen carbnate reacts with excess citric acid according to the equation: 3NaHCO3 H3C6H5O7 -> Na3C6H5O7 3CO2 3H2O

the questions with the provided information

See the attached file and answer the solve the problems. any question feel free to ask. show your work

1- when the equation below is balanced the coefficient of oxygen gas

Get college assignment help at Smashing Essays 1- when the equation below is balanced the coefficient of oxygen gas is?__ch4 o2 →__co2 ___h2oa. 0b. 1c. 3e. none of the above2- how many oxygen atoms are contained in 2.0 mols of oxygen o2 gas ?a. 6.02 x 1023b. 23c. 1.204 x 1024d. 2.408 x 1024e. none of the above3- when an ionic compound dissolves in water a. the oxygen end of water molecules surround the anionsb. the hydrogen end of water molecules surround the cationsc. the oxygen end of water molecules surround the cationsd. the oxygen end of water molecules surround both the anions and the ctionse. none of the above

Relative Reduction Potential Assuming standard conditions, and considering the table of standard reduction potentials for half-reactions, given in your text, rank the following species according to th

Relative Reduction Potential Assuming standard conditions, and considering the table of standard reduction potentials for half-reactions, given in your text, rank the following species according to th Selective Oxidation The standard reduction potential for the half-reaction Sn4 2e- Sn2 is 0.15 V. Consider data from the table of standard reduction potentials for common half-reactions, in 16. Complete the reaction of the radioisotopes undergoing the disintegration. (0.1 points) sotp to Th 17. The half-life (t) of “A” radioisotopes is 12 days. How many millicuries (mci) of radioactive m Galvanic Cells Using tabulated standard reduction potentials from your text, calculate the standard cell potential, E°cell (always positive for a galvanic cell), based on the following (unbalanced) r A scientist measures the standard enthalpy change for the following reaction to be -87.5 kJ : 2HBr(g) Cl2(g)2HCl(g) Br2(g) Based on this value and the standard enthalpies of formation for the othe Solubility product of magnesium chloride In this experiment the solubility product constant of magnesium hydroxide will be determined by the pH measurement of a saturated Mg(OH)2 solution. From the pH 13. When an “alpha particle is released from the naturally occurring radioisotopes, it results into: (0.2 points) A. Loss of ONLY 2 in the atomic number B. Loss of ONLY 4 in the mass number (atomic we FORMULA OF MOLECULE OR ION TOTAL NUMBER OF LEWIS ELECTRON DOT STRUCTURE MOLECULAR GEOMETRY MOLECULAR CLASS IS THE ION/ VALENCE ELECTRONS POLAR OR NONPOLAR? 1 Co2 2 Na CIO 3 Na NOs KNO3 4 5 6 267 5. (1,5 points) Consider the following compounds: CCl4, BF, SH, HF a) Which type of intramolecular bonds is stablished in each molecule? Order them in order of increasing polarity. b) Assign the follo 5. (1,5 points) Consider the following compounds: CCI, BF, SH, HF a) Which type of intramolecular bonds is stablished in each molecule? Order them in order of increasing polarity. b) Assign the follow A reaction has a rate constant of 1.27×10−4 s−1 at 26 ∘C and 0.234 s−1 at 79 ∘C . What is the value of the rate constant at 18 ∘C ? Express your answer in units of inverse seconds (s�Exercise 14.70 – Enhanced – with Feedback 47 of 63 m Review | Constants Periodic Table Part B A reaction has a rate constant of 1.27×10-4s-1 at 26 °C and 0.234 s-1 at 79 °C. What is the value of the 27. Which of the following specie is the strongest reducing agent? Li le Li Ag le Ag MnO 8H 8e Mn 4H O Ba 2e Ba E- -3.05 V E’- 0.8 V E°- 1.51 V E–2.90 V The Debäte CluE A) Mn B) Ag C) Ba D) Li Standardization of a Sodium Hydroxide Solution Name Section Date Score Post-lab Assignment 1. Calculate the molarity of a barium hydroxide solution if you used 41.65 mL of it to neutralize 1.190 g of Dondings with water. Write a scheme showing SUrt the compounds as increasing solubility in water. Justify your answers. (1 point) Calculate the pH of a 1.0 M NH4CI aqueous solution, knowing that Kb (N 19. Balancing the equations (No points H.PO. KOH => K.POHO K B.O.=>> KO B Na NaNO -> NaO N. Na 0,=> Nao N 0,=> NO. H.PO. Mg(OH), -> Mg (PO.). H.O NaOH H.CO.=> Na.CO. HO Al(OH). H.CO.-> Al( By what factor would you expect the reaction rate to increase at 25 ∘C? (Assume that the frequency factors for the catalyzed and uncatalyzed reactions are identical.)Part A Review | Constants Periodic Table Suppose that a catalyst lowers the activation barrier of a reaction from 121 kJ/mol to 55 kJ/mol. By what factor would you expect the reaction rate to increase 2. The K of nickel sulfide (NiS) is 4.0 x 10-20, What is the concentration of sulfide ion in a saturated of nickel sulfide? a. 2.0 x 10-10 M b. 4.0 x 10-10 M 4.0 x 10-20 M C. 1.6 x 10-39 M d. can someone help me with my pre lab please?ting because the positive cell po s het aluminum should dissolve a PRELAB QUESTIONS The fact that a the daton n resistant to co aluminum try water w ) 6 OH ( -0.88 V 2 Alag) 3H 2 A) 6 HOD Explai 14. Heating tert-butyl chloride with 1.0 M NaOH in a mixture of water and methanol would yield mainly A) CH2=C(CH2h through an E2 reaction B) (CH3),COCH, through an S1 reaction C) (CH3),COH through an First box is correct, second box is not. Please help! Thank you!Part 1 (2 pts) ” See Periodic Table See Hint Please draw all four bonds at stereocenters. Do not use wedges and dashes on sp carbons. Draw the major organic product ONLY. Be sure to indicate the corre The activation energy for the gas phase decomposition of 2,3- dichloropropane is 230 kJ. CH,CHCICH,C1CH2CH=CHCI HCI The rate constant at 713 K is 9.26×10-4 /s. The rate constant will be 4.82×10-3 /s 9. If AG of the following reaction is-110 kJ/mol, what is Ee? (F 96.500 C mo!) A (aq) 3B(s)-A(s) 3B (aq) A) 0.38 V B)-0.09 V C)-0.38 V D) 0.00038 V 30. Which of the following specie is the strongest simetry will be introduced. The Schemistry, and electrochemistry to demonstrate and reinforce the CHEMISTRY LABORATORI Rapper Kies www plete the course / 9,7:30 – 9:30 PM PM Can Thunde Aug Check out C 9. In the Oxygen Lab, we performed a variety of reactions involving oxygen. Please provide the two balanced, chemical equations for the two steps involved the production of iron(II) hydroxide starting orgo II need some Help please!1) How many distinct terminal alkynes exist with a molecular formula of C6H10? A) 1 B) 2 C) 3 D) 4 E) 5 2) Name the compound shown below. 3) The correct IUPAC name for the following structure is – 3 number 4Explain the purpose of using a boiling chip in the distillation flask? a. Explain the purpose of the condenser in the distillation apparatus. b. 4, You obtained the graph below when plotting temperatu orgo II need help please!9) Explain why the synthetic route shown below would be unsuccessful. 1. CH3CH2Br 2. NANH2 H-C C:- Nat (HC)3CCC-CH2CH3 3. (CH3)3CBr 10) Provide the structure of the major organic product(s) in the rea orgo II need help please!14) Provide the structure of the major organic product(s) in the reaction below. 3 of 4 : HgSOHO H SO. 15)_ 15) Which of the following reagents should be used to convert hex-3-yne to (E)-hex-3-ene? A) 4a ?a. Explain the purpose of using a boiling chip in the distillation flask? b. Explain the purpose of the condenser in the distillation apparatus. 4. You obtained the graph below when plotting temperatu orgo II need help please!18) Which of the following pairs of compounds can be described as keto-enol tautomers. Circle or mark any pairs that are. a) HC N OH and HCA b) H3C O H and H3C H c) o w and HC 19) Draw the structures A reaction profile (not to scale!) for the reaction C2H3Br OH —>CH,OH Brº is shown below: E (kJ) C2H5Br OH C2H5OH Br Reaction Coordinate This reaction is exothermic,endothermic) The value o 4b?a. Explain the purpose of using a boiling chip in the distillation flask? b. Explain the purpose of the condenser in the distillation apparatus. 4. You obtained the graph below when plotting temperatu 4ca. Explain the purpose of using a boiling chip in the distillation flask? b. Explain the purpose of the condenser in the distillation apparatus. 4. You obtained the graph below when plotting temperatu 6?Time – > a. Which compound(s) is/are present in the distillation flask at Curve B? b. Which compound(s) is/are present in the distillation flask at Curve C? c. Explain what is happening at Curve C (in please help answer the questions in decond picture, first picture is informationIntroduction Chemical reactions produce waste. You are breathing out waste CO, right now which happily is recycled by plants to make glucose. In general, we should try and optimize lab chemical reacti A silicon (Φ = 7.77 × 10-19 J) surface is irradiated with UV radiation with a wavelength of 245 nm. Assume an electron was a mass of 9.11 x 10-31 kg What is the frequency of the incident radiation? Report Form – What’s My Formula? Unknown Number 9189 Mass, Evaporating Dish and Unknown Mass, Evaporating Dish Mass, Unknown Mass, Evaporating Dish and Product-1″ heating 76.319 73.349 2.979 75.374 17 I need help with problems 7, 15, 18, 20, 22, and 26. I attempted a few but have a feeling it’s not right. If possible please give detailed explanations of how you got your answer. Thank you in advanDe 7) Provide the structure of the major organic product of the reaction below. OH 1. Hg(OAc)2, CH3CH2OH 2. NaBH4 13) Provide the name of the major organic product that results when trans-4-methylcy help please!For each of the known substances: ethanol, 2-propanol, and 2-methyl-2-propanol that reacted with Lucas reagent, write the structural formula of the oxidation product formed. C. ethano 2-Propanol -meth A kinetic isotope effect of 3-8 could most likely be observed in which of the following echanisms? B) E1 and Sy1 F) Su1 C)E1 F) None of the above A) S,1 and Sy2 D) E2 Answer f the following is the bes For the gas phase decomposition of 2,3-dichloropropane, CH-СHCICH,CH-СH,CH-CHCІ HCI the rate constant at 695 K is 3.40×104 /s and the rate constant at 733 K is 2.68×10-3 /s. The activation energy I need help with problems 34, 36, 40, 46, 47, and 48. I attempted a few but have a feeling they are wrong. If possible please give detailed description of how you got your answer. Thank you.IVIJU ULICI e 34) The compound produced when 3-methylpent-2-ene undergoes hydrogenation in the presence of a platinum catalyst is 35) Circle the alkene below which has the smallest heat of hydrogenati J ul 101 Wis question. The gas phase decomposition of dimethyl ether at 500 °C | CH3OCH3(g) — CH4(g) H2(g) CO(g) is first order in CH3OCHz with a rate constant of 4.00×10-45-1 If the initial co The common laboratory solvent ethanol is often used to purify substances dissolved in it. The vapor pressure of ethanol, CH2CH2OH, is 54.68 mm Hg at 25 °C. In a laboratory experiment, students synthe The boiling point of ethanol, CH3CH2OH, is 78.50°C at 1 atmosphere. A nonvolatile, nonelectrolyte that dissolves in ethanol is chlorophyll. A student dissolves 12.27 grams of chlorophyll, C551,2MgN40 19 What is the major product of the following E2 reaction? сн. CH-CH-CHCH.CH, осн, o CH CH=CH-CH=CH.CH B) CH -CH-CFC-CH.CH сн. – оң-сон, — сном, -CH2-C=CHCH, CH -CH-CH:CH-CH=CH: The conversion of methyl isonitrile to acetonitrile in the gas phase at 250 °C CH3NC(g)—CH3CN(g) is first order in CH2NC with a rate constant of 3.00×10-35-1 If the initial concentration of CH3NC i 32. Consider an electrochemical cell with a potassium electrode immersed in K solution and a cupper electrode immersed in Cu solution E (Cu/Cu)=0.52V E (K /K) -2.93 V CalculateBfor this cell Debate Cl D. Iron rod pa pusstence E. A sodium chloride (table salt) in water pulls su 4. Write “atoms” or “Molecule” present in the following co (0.7 point) A. Helium in the balloon m B. Sodium chloride m C. S D. Iron rod pa pusstence E. A sodium chloride (table salt) in water pulls su 4. Write “atoms” or “Molecule” present in the following co (0.7 point) A. Helium in the balloon m B. Sodium chloride m C. S I need some explanation for the following questions. like answer with explanations please. thank you. 1 of 15 A barometric pressure is 750 mm Hg. Calculate this pressure in torr. 750 torr 0.987 A reaction profile (not to scale!) for the reaction NO2 CONO CO2 is shown below: E (kJ) NO2 CO 226 NO CO2 Reaction Coordinate Which of the following are true? Choose all that apply. The value Review Constants Periodic Table Sulfur dioxide is a common preservative in wine; it prevents oxidation and bacterial growth. When SO2 is added to wine, it reacts with water to form an equilibrium syst The boiling point of water H20 is 100.0°C at 1 atmosphere. A nonvolatile, nonelectrolyte that dissolves in water is antifreeze (ethylene glycol). How many grams of antifreeze, CH2OHCH2OH (62.10 g/mol The freezing point of water, H20, is 0.000 °C at 1 atmosphere. K(water) = -1.86 °C/m In a laboratory experiment, students synthesized a new compound and found that when 11.27 grams of the compound w DONEY Protons and Neutrons E ON.Y electrons and Neutrons F OWLY Protons, Neutrons and electrons determining the atomic mass atomic weight or mass numbers, which of the natomic particle’s weight is not The gas phase decomposition of nitrosyl chloride at 400 K NOCI(g) NO(g) Cl2(g) is second order in NOCI with a rate constant of 5.90x104ml s1 If the initial concentration of NOCI is 1.63×10-2 M, the 40. In the following Lewis structure for PO, phosphorus has a formal charge of number of and an oxidation (Hint: O is more electronegative than P) 13- :o: A) 0,-3 B) 5.5 C) 5,-3 D) 0, 5 Lain “Neutron(s)”. You can consult the perio B. Calcium Hydrogen (H) Fluorine E. Phosphorus Nitrogen G. Carbon 9. In periodic table, the longitudinal lines are called? (0.20 points) A. Periods B. Grou Part II. Subjective 1. Why is the alkyl halide below not capable of undergoing an E2 reaction upon treatment with sodium ethoxide? Be sure to include a sketch of the chair conformation, which illustra A. Calculate the value of (1/T1−1/T2) where T1 is the initial temperature and T2 is the final temperature. B. Calculate the value of ln(k2/k1) where k1 and k2 correspond to the rate constants at theReaction Rates and Temperature 51 of 63 The rate constant of a chemical reaction increased from 0.100 s to 2.80 s upon raising the temperature from 25.0 C to 45.0 C Review Constants Periodic Table Lea Please type Answers with Correct SigfigsRefer to the table given for the ionic radii in your lab manual and approximate the attractive portion of the lattice energy for 1 mole of the following salts. (Consider only one bond if more than one A beling Please Type Answers with Correct SigFigs2. -/50 points FSUGenChem1L1 9.PRE.002. My Notes Ask Your Teacher The following data was collected after running a calorimetric experiment using three salts Table 1: Ang Values of Salts Salt AH gol (k Does an enzyme change the equalibrium concentrations of reactants and products? please explain in detail. The free post of waters FC How manyms of calcium chloride ( 110 3 48 Forma HO Ethanol CH.CH,OH CHCI Benzene CH Duhether CH.CHOCH.CH 123 253 202 calcium chloride eCovalentActivity dollocator P- c s Web View Navigation Ch 12 ow1Online teaching an. O Review Topical References Use the Referces to access inpartast vale if meeded fr dis qti The freezing point of be The activation energy for the gas phase decomposition of 2,3-dichloropropane is 230 kJ. CH3CHCICH C1 CH2CH=CHCI HCI The rate constant at 662 K is 4.70x10S /s. The rate constant will be /s at 704 K. Find the concentration of Cl2. Express your answer to two significant figures and include the appropriate units.Exercise 14.119 49 of 63 > Part B A Review | Constants Periodic Table At 473 K, for the elementary reaction Find the concentration of Cl2. Express your answer to two significant figures and include th Use a sheet of paper to answer the following question. When complete, take a picture of your answer and attach the file to this assignment. Draw the products obtained in each of the following reaction The decomposition of ammonia on a platinum surface at 856 °C NH31/2 N2 3/2 H2 is zero order in NH3 with a rate constant of 1.50×10-6 M s If the initial concentration of NH3 is 1.28×102 M, the concent 41. Select the pair of substances in which the one with the lower vapor pressure at a given temperatur listed first. » The Debate Club CH3-C-OH CH3CH2CH OH B) CF, CBra C) CH. CH10 D) F2.Ch HELP!!!11) Name it. QH HELP!!!12) Show the major organic products of these reactions. Stereochemistry! Br Mg но” THE Br H,O Br2 Mg H,0 . . . butane heat THF HELP!!13) Provide the necessary reagents. my HELP!14) Draw the product. HO, KOH 1) CHACH MgBr 2) H H, SO, (aq) HgSO4 help!15) Give one combination of organometallic and carbonyl containing compound that could be used to synthesize the alcohol below. The gas phase reaction of carbon monoxide with nitrogen dioxide is believed to occur by the following mechanism: step 1 slow: 2 NO2 — NO3 NO step 2 fast: NO3 Co—NO2 CO2 (1) What is the equat help!!3) Predict the major product from the reaction sequence below. 1) NaNH 1) NaNH2 H-CEC-H – | 2) CH2Br 2) 1-iodobutane a) 1-heptyne b) 2-heptyne c) 3-heptyned) 2-octynee) none of these help!4) Which alkyne below would give H2SO4/Hg2 catalyzed addition of water? a) cyclodecyne two different ketones in approximately the same amount with the b) 1-hexyne c) 2-hexyne d)3-hexyne help!6) What is the major product of the reaction shown? 2 HCI CH.CH.CECH a) 1,1-dichlorobutane b) 1,2-dichlorobutane c) 2,2-dichlorobutane d) 2,3-dichlorobutane Al Identify the formula and name of the resulting compound formed from the following ions. Na OH NaOH sodium hydroxide K F Cs HCO; CH A Mg2 Ca2 CrO2- Lit SO2- Ba2 NO; Ag* NH: CN- PO Mn Fe3 02- 12 B Write the correct formula for the following compounds: 22 iron (III) acetate 23 magnesium sulfide 24 ammonium nitrate 25 cobalt (III) sulfite 26 copper (II) oxide calcium carbonate 28 potassium chlo cl Write the correct name for the following compounds: 32 Sif, 33 NO 40 NO 41 As, DWrite the correct formula for the following compounds: 42 dinitrogen trioxide 43 silicon dioxide 44 bromine trichloride 45 disulfur dichloride selenium hexafluoride carbon tetrachloride 48 tetraphosp El Write the correct name for the following species: 52 HCl(aq) 54 N,S. 55 Fo_ 57 KHSO 58 CuS0.44,0 59 PO. 60 CF – 61 Ca2 62 Sn,(PO), 63 HNO3( 64 Agci 65 BaCl, 2 H,0 66 P3- 67 NaMno 68 HBF. 70 CoBr Fl Write the correct formula for the following species: 72 hydrofluoric acid 73 sodium phosphate 74 iron (III) hydroxide 75 ammonium bromide 76 sulfide ion 77 carbonate ion 78 arsenic pentachloride 79 halkyl halide will react most readily under E2 reaction conditions with sodium ethoxide?! F None of the above, Answer: 5. Which alkene is the major product of this dehydration? OH H2SO4 heat F None of From the spectral information and molecular formula, propose structures that are consis- tent with the data for 3-A through 3-G. The spectra are 300 MHz FT-NMR ‘H NMR spec tra. The NMR solvent is CDCI the molecular mass. Expl bromine is present tation of mass speculum 1. For each of the spectra labeled a-f below, determine the mol how it is possible to tell if nitrogen, chlorine, or bromine is pr 2 A common way to make hydrogen gas in the laboratory is to place a metal such as zinc in hydrochloric acid (see the figure). The hydrochloric acid reacts with the metal to produce hydrogen gas, which i MF C6H12C2 MW 155 $C 45.5 5H 7.8 sa 45.1 EI **3.5*3.5*2.5*2.6** *1.5*1. 6 .5 PM Proton MA MF CH 10 MW 70 5C 85.6 SH 14.4 TRAHITTA MWG 5.4 5.2 5. P M 5.6 5.5 5.6 Proton NVR MF CH120 MW 136 *C 79.4 A sample of hydrogen gas is mixed with water vapor. The mixture has a total pressure of 751 torr , and the water vapor has a partial pressure of 25 torr . What amount (in moles) of hydrogen gas is con 2- In the figure below, the cross-hate hes denote the lattice positions. The lattice structure has a-2 A, a-2 A. what is the primitive choice of a, a? Draw them on the figure. P o uy To Do Camphor and p-carotene. 2. Using sublimation, a student attempted to separate camphor (mp 175-177 °C) from borneol (mp 206-208°C) by sublimation at 120°C at atmospheric pressure. When Why is NH3 greater than SO3? SO3 is larger so shouldn’t it have stronger intermolecular forces?Rank the following substances in order from strongest (1) to weakest (5) intermolecular forces. % Answers Selected Answer 1. Naci 1. Naci 2. H20 32. SO3 3. NH3 3. NH3 4.S03 4. He 5. He 5. H20 For each of the following mixtures, predict the range in which the boiling point will fall based on intermolecular forces. a.) water (BP 100oC) and hexane (BP 68oC) b.) acetone (BP 56oC) and water c.) The action of some commercial drain cleaners is based on the following reaction: 2 NaOH(s) 2 Al(s) 6 H2O(l) → 2 NaAl(OH)4(s) 3 H2(g) What is the volume of H2 gas formed at STP when 8.32 g of A How come the answer is A?10. How many of the following salts are expected to be insoluble in water? sodium sulfide barium nitrate ammonium sulfate potassium phosphate A) none B) E) 4 General Chemistry 1311 Unit 1 Homework Dr. Amorde HW10 Sassy Structures in the News 1. On November 15, 2014, a Du Pont chemical plant in La Porte. TX had an accidental release of a gas killing 4 peopl

Investigate why this reaction only gives this one product. Discuss both the endo/exo rule and consider resonance. Please draw out any structures that help to prove your point and provide a mechanism.Description: For most Diels-alder reactions, multiple products can be formed. The following Diels-Alder reaction only gives one product. Me o o (*) Me o 0 (3) Me Me o. Me Drastically favored Me Instru

Investigate why this reaction only gives this one product. Discuss both the endo/exo rule and consider resonance. Please draw out any structures that help to prove your point and provide a mechanism.Description: For most Diels-alder reactions, multiple products can be formed. The following Diels-Alder reaction only gives one product. Me o o (*) Me o 0 (3) Me Me o. Me Drastically favored Me Instru Calculate the heat lost by the hot water using your results for Experiment 3: Measuring the Enthalpy of Fusion of Water. Heat must be expressed in kilojoules (kJ). Q= (4.18 J/g °C) x (1 kJ/1000 J) x Measuring the Enthalpy of Fusion of Water, calculate the molar heat of fusion of ice, i.e., the number of kilojoules of heat per mole ice. q = ΔHfusm Enthalpy Data Volume of Hot Water 30 mL Initial T Measuring the Enthalpy of Fusion of Water, calculate the percent error in your determination of the value for the molar heat of fusion of ice. Percent Error = |Experimental – Actual|/ (Actual) x 100 = A solution contains 1.29×10-2 M silver nitrate and 1.33×10-2 M lead acetate, Solid ammonium chloride is added slowly to this mixture. A. What is the formula of the substance that precipitates first? f A solution contains 7.43×10-3M ammonium sulfide and 1.18×10-2 M sodium hydroxide. Solid cobalt(II) acetate is added slowly to this mixture. A. What is the formula of the substance that precipitates fi Which of the following cations can, have either a high-spin or a low-spin electron configuration in a tetrahedral field? Co2 , Cr3 , Ni2 , and Zn2 Can you Identify the peaks for the H NMR and IR for this chemical (CIS MAJOR PRODUCT):OH )IIIIIIIIO CH3 CH3 CH3 trans NaBHI cis MeOH 3500 3317.20 3000 2906.44 0036 2000 1500 144888 1372 45 1347.25 1066.87 1000 .052.72 1037.44 978.197 928.53 653.07 564.31 8 552.93 538.07 523.98 436.56 In this reaction: what is the side reaction which occurs [Borneol] oxidiation –> Camphor The IUPAC name of the alcohol shown is CH3 -CH=CH-CH2 – CH2 – OH CH3 CH3 Remember the alcohol group takes position over the methyl groups Select one: O a. 2,3-dimethyl-5-pentanol. O O b. 2,3-dimethy mole labLILLE “A mole of any substance contains 6.02 x 1023 porticles A mole of lead will be Cheavled or lighter thana mole of oxygen because: _more protons, neutrons and electrons_ The mass of a mole of a su Name Hour Mass (g) Mass lol Procedure Part 3: Mcles and Molecules in your name 1. Find the mass of a crayon. Substance Moss gl 2. Write your full name on a piece of paper. Before 3. Find the mass of t Question 13 Not yet answered Points out of 1.00 p Flag question Which group is the best description of the properties of alkanes? Select one: Spell out the common name of the compound. Previous Answers Submit Answer Requested Part B CH3-CH2-CH2-CH2-C-CH2-CH2-CH2-CH3 Spell out the common name of the compound. Submit Request Answer Part C C The reaction below has an equilibrium constant Kp=2.2×106 at 298 K. 2COF2(g)⇌CO2(g) CF4(g) You may want to reference(Pages 647 – 650) Section 15.4 while completing this problem.Review Constants Periodic Table The reaction below has an equilibrium constant Kp = 2.2 x 10º at 298 K. 2 COF2(g) = CO2(g) CF4(g) Part B You may want to reference (Pages 647-650) Section 15.4 while CH3-CH2-C-H Spell out the common name of the compound. Submit Request Answer What best accounts for the observation? Match the words in the left column to the appropriate blanks in the sentences on Part B What best accounts for the observation? Match the words in the left column to the appropriate blanks in the sentences on the right Reset Help exhibits dipole dipole interactions Pentanone has a Consider the following reaction: H2(g) I2(g)⇌2HI(g) A reaction mixture in a 3.69 L flask at a certain temperature initially contains 0.767 g H2 and 96.9 g I2. At equilibrium, the flask contains 90.2Review Consider the following reaction: H2 (g) I2 (g) A reaction mixture in a 3.69 L flask at a certain Periodic Table I Constants Calculate the equilibrium constant (Kc) for the reaction at this temp H – C – C – N – H (C on left: dbl bond o, sngl bond H, sngl bond c) (c in center: 2 sngl bond H, sngl bond c, sngl bond N) (Non right: 2 sngl bond H, sngl bond C, one lone pair) For the molecule given || H C C N- H H H (C on left: dbl bond O, sngl bond H, sngl bond C) (C in center: 2 sngl bond H, sngl bond C, sngl bond N) (N on right: 2 sngl bond H, sngl bond C, one lone pair) For the molecule give According to Valence Bond Theory, in the molecule CH 4, each of the four carbon – hydrogen bonds are formed by overlapping what orbitals? son hydrogen with s on carbon Os on hydrogen with p on carbon dentify the Aldehydes or Ketones from an Acetal or Hemiacetal Identify the end product of hydrolysis of the following acetals. Drag the appropriate labels to their respective targets. View Available H You may want to reference (Pages 508 509) Section 14 4 while completing this problem Part A Indicate whether each of the following is a hemiacetal, acetal, or neither Drag the appropriate items to the Please show steps clearly. The Question is: what will be molarity of a solution formed by dissolving 20g of sugar (C6 H12 O6) in 500 ml of water ? Home Problem 5.71 – Enhanced – with Feedback Part A Geologists Identity carbonate minerals by reaction with acids. Dolomite, for example, contains magnesium carbonate, which reacts with hydrochloric a 42 /dekl. Calculate Assume the enthalpy of water at 25 degree to be 100 kJ. Marss of the water sample is 2 ke. The average specificheat capacity of water the enthalpy of the water sample at 75 degree Synthesize from benzene A HCIO / NaClO buffer system is to be constructed that is also 0.036 M in Co2 . What is the minimum (HCIO]/[CIO] that must be maintained to keep a precipitate of cobalt(IT) hydroxide from forming? [HC b. For the reaction [CoX(NH3)3]?* H20 – [CO(NH3)5(H20)]** x A log-log plot of equilibrium constant vs rate constant is shown below; the slope is equals to 1. log k HyPO -1 0 1 log K e Explain usin 222 Exploring Chemistry 2b. Reac Compounds Addition of KMnO, observations No color change Purpe Hexane A turm black Cyclohexene ancak dewt Mnou se partae f Alcholy Toluene light umple KMnO, dont move Laboratory Instructor STUDENT REPORT EXPERIMENT 19 Reactivity of Hydrocarbons A. Data Sheet la. Substances Solubility Observations Hexane water insonbile separate lover. Wote didat mixer Hexane to The mass flow rate of n-hexane in the pipe is 6.59 g / s. Calculate the flow in the volume in cm ^ 3 / min. Combined Spectroscopy: Using all of the combined spectral data below (MS, IR, “C NMR and ‘H NMR) propose a chemical structure that is consistent with the provided data. Show your logic and reasoning b Cele the best awer in all of the following 24 ired to burn 1.50 mol of phosphorus PO… . How many liters of oxyen STPr (P.) according to the following reaction? P 50 a. 22.4L 1 b.33.6L SIP c. 840L d B.Match each hydrate formula with the correct chemical name. MgSO4H20 Magnesium sulfate dihydrate MgSO4 2H20 Magnesium sulfate monohydrate MgSO,3H20 Magnesium sulfate heptahydrate :MgSO4-5H2O MgSO 6H2 d.-1 e. -2 9. The number of double bond(s) in C:Na is N= c = c =N a. 0 e. 4 10. A gas sample at 1.0 atm and 25°C is heated at constant pressure until its volume is doubled. What is the final temperat 1. Which of the following molecules does not have a dipole moment? a. HCI b.O e. HCN d. SO, e. None of the above 12. Given the following reaction: AH-2035 kJ B,Oo 3 H,O BH 30 Calculate the heat relea A040 16. A system undergoes a process consisting of the following two steps Step 1 The system absorbs so of heat while 30 of work is done Step 2: The system liberates 30) of heat while performing 60 J for first question p4 6F2 -> 4pmPF3?has yield 87% how many grams of pf3 gas are produced from 25g ofF2 p4 6F2 -> 4pmPF3?has yield 87% how many grams of pf3 gas are produced from 25g ofF24 P asyid How many grams of PF, am late the m a n when 250 ml of 0.15 M sodium amate (NC) soutis de 500 ml of 0.030 M potassium chloride 265, me ms 0.15 Ne, Co, 003 M 0.10M 0.12 M .0.30M None of the a 26. An element fluoride of Eis most likely has the electron configuration 12:20 3 pl. The formula for the b. EF c. EF d. EF e. EF, 27. Which of the following compounds is soluble in water? a. Agai b. Identify which of the following molecules can exhibit hydrogen bonding as a pure liquid. acetic acid difluoromethane formaldehyde ammonia tetrachloromethane methanol H−Br finding the common ion affect solubilityCommon lons Affect Solubility Sample Exercise 17.12 At STP, the Ksp for the dissolution of CaF, is equal to 3.9 10-11. Calculate the solubility of Caf, at 25 °C in a solution that is: Suppose an element and a compound combine to form only one product .classify the product as an element or a compound ..explain. 5) Dietary measures are the best way to increase the level of our blood HDL True or False 6) When the ingredients list for a food product says that it has partially hydrogenated oil that means the pro solubility equilibria and ksp problemSolubility Equilibria and Kp Problem Set 17, #17 The concentration of iodide ions in a saturated solution of lead (11) iodide is M. The solubility product constant of Pbl, is 1.4 x 10-8. a. 3.8 x 10-4 Prelab Questions 1. How must waste cyclohexane and its solutions be disposed disposed of properly? be done by si them Prope disposal of cyclohexane and its sol one by storing them in glass bottles. co 2. A 1.00 L gas sample at 25°C and 570 tort contains 40% helium and 6% arwony mass. What is the partial pressure of the argon gas? er 0. 067 a. 495.7 tort . 142.4 tort 74.3 ton – d. 342 tomt e. None 5When the ng reaction is balanced in acidic solution, what is the coefficient of e 10, 6.2 None of the showew2 o For identical 10L fasks contain the following gases, each at C and 1.0 am Whch a hs the 9.Gaseous C, reacts with O, scconding to the following d e 24 What volume of oxygen at STP is eded to react a4.301 T273 h 33.6L VSTOolll127 d. 67.2 L e. None of the alove 10. The rate of effusicn of u Q.1- a 1000g sample of a metal chloride MCL2 is dissolved in water and with excess aqueous silver nitrate AgNO3. the silver chloride that forned weighted 1.286g calculate atomic mass of M Q.2 – the m13. A L000-g sample of a metal diloride e dkd s er d seaod wit excess aquecus silver nitate (AgNCi The sler eeide that formed weigh 1236g Calcalse te onic h 222.8 gmol b76.00 gmol GA520 d. 304.0 g/mol When a mole of lithium reacts chemically with hydrogen to form lithium hydride, the energy released is found to be roughly 90 joules. How much mass is lost? This is the question as it was given. Th 1. Which of the following describes the correct net ionic equation for the reaction of copper (II) chloride solution with silver nitrate solution? CuCl2 (aq) AgNO3 (aq) Cu(NO3)2 (aq) AgCl (s) CuCl 1. Given the following chemical equation, how many grams of hydrogen are necessary to react with 2.85 moles of carbon monoxide?CO (g) 2H2 (g) CH3OH (g) Question 2 (1 point) Identify the atom being oxidized a) FeO(s) CO(g) → Fe(s) CO2(g) b) FeCO3(s) → FeO(s) CO2(g) c) 2H30 (aq) Mg(s) – Mg 2(aq) H2(g) 2H20(1) d) HCl(aq) NaOH(aq) N 1 Dun UI e sentences below appears verdun le section entitled Review of Concepts and Vocabulary. The position of a halogen can be moved by performing. followed by Fill in the blanks below. To verify Question 5 (1 point) Which of the following is an acceptable set of quantum numbers for the outer most valence electron in an atom of phosphorus in the ground state? 3,0,0, 3,1, 1, 3,1, 2, ½ 3,2,0 What should I insert to the table?SNO1013 Introduction to Organic Chemistry EXPERIMENT ! STEREOCHEMISTRY 1.1 OBJECTIVE A. Conformation 1 pletion of this experiment, students will be able to Draw the Sawhorse and Newman projections for Complete Step Synthesis Please.- 3-hydrocyaniline oms O Aldia carbon Kop ChE 342, HW# 3, Summer-19 Problem # 1 Using the data below you are to select concentrations of initiator and CTA that will give poly(vinyl acetate) with an initial molecular weight (assuming dispropor Briefly describe how you would synthesize ortho-bromo-tert-butylbenzene from tert-butylbenzene, without getting much of the para product. *O2.48 Enter Your Answer: 500 correct for the water vapor present in the wet dry ice experiment and compare and compare with the mean value for the dry ice experiment. Does the presence of water vapor affect the result? Explain wh Which of the following may contribute to the increased radius of an anion compared to parent atom? select all that applies. Additional electrons lead to more electron-electron repulsion, which will Steam reforming of methane ( CH4 ) produces “synthesis gas,” a mixture of carbon monoxide gas and hydrogen gas, which is the starting point for many important industrial chemical syntheses. An industrSteam reforming of methane (CH4) produces “synthesis gas,” a mixture of carbon monoxide gas and hydrogen gas, which is the startingg point for many important industrial chemical syntheses. An industri Give the expected product(s) of the E2 elimination reactions below. (Hint: Use models) CH3 HHH Br CH3CH2OK ? H CH3 CH2ONa I 4. The concentration of OH ions in a sample of seawater is 5.0 x 10M . a. Calculate the concentration of H30 ions and classify the solution as neutral, acidic, or basic. b. Calculate the pOH of the ab When the compound shown below is heated in presence of methanol, several different products are formed Propose a detailed mechanism using curved arrows to account for the formation of the four product For each reaction, indicate whether substitution or elimination reaction (or both) is possible and predict the products expected. Label the major product in each case (if applicable) a) 1-bromo-1-meth Which pair of side chains could be involved in an ionic interaction? Check all that apply.Item 27 Part A Which pair of side chains could be involved in an ionic interaction? Check all that apply. 0–CH2-CH2-CH-CH2-NH, 0-CH 0 —CH O -CH-CH2-C OH O none of the above Submit Request Answer I Part A What is the purpose of an enzyme? O to slow down biological reactions O to bind molecules and keep them out of the body O to slice sucrose into two ore more pieces O to speed up biochemical rea (a) Assuming SI-units, what is the unit of the diffusion coefficient (D) when calculated from the mean square displacement, (r)2, according to: (r)2 = 6Dt C, where r is distance, t is time and C is ΠΗΝΕΛΗΞΗ U Noda PROBLEMS: Acid-Base Titration Directions: You must show calculation set up in space provided and place final answer on line for credit. Use dimensional analysis and the stoichi (b) A 0.7040g sample of iron ore (Fe2O3) is dissolved in acid. The iron ore is then reduced to Fe2 and titrated with 37.22 mL 0.02142 M KMnO4 solution Write the balançed equation for the reaction be Be sure to answer all parts. The standard enthalpy of formation and the standard entropy of gaseous benzene are 82.93 kJ/mol and 269.2 J/K mol, respectively. Calculate AH°, As°, and AG0 for the foll A chemist is studying the following equilibirum, which has the given equilibrium constant at a certain temperature: 2 NO(g) Cl2(g)=2 NOCI(g) Ky=2.* 10-‘ He fills a reaction vessel at this temperatur Identify the correct electron configuration for silicon. o 1523²2p²33232 o 18²28²2p3%3p? o 18223²2p°38²3p?3d1 o 1s 2s²2p°38°3p? Be sure to answer all parts. Write the electron configurat Enter a numeric response. What is the maximum number of electrons that can fill a 3d sublevel? Be sure to answer all parts. Identify the elements that have the following abbreviated electron configurations. (a) [Ne] 3s 3p (b) [Ar] 4s=” (c) [Xe] 6s provide a detailed, stepwise mechanism for the formation of the three elimination products that could from a reaction 2 ethylcyclopentanol Identify the element that has the following abbreviated electron configuration: [Xe] 645d10 o Zinc O Cadmium O Gold O Mercury Next ir Prev son 15 Next > 2. 12 points. For each of the chemicals listed in the following table provide their chemical formula and molecular weight. Provide the balanced combustion equation for each chemical. Using the concent 3. 9 points. For each of the chemicals listed in the following table provide their chemical formula and molecular weight. Using the concentration provided, calculate the amount of nitrogen, in mg/l. N The Bohr model of the atom is useful for understand- ing the origin of absorption line spectra. The figure shows such a model for the hydrogen atom with an electron in the lowest energy level, or grou 7. What is the name of the traditional method to measure dissolved oxygen that uses iodine? 8. What are two reasons WWTPs prefer to use COD for operational control? 9. What are two negative aspects of LO. What is SRT? 1. What is another name for SRT? 12. What is F/M? 15. Name one advantage one disadvantage of membrane bioreactors compared to a completely mixed activated sludge system. 16. Name the two primary nutrients. 17. Name two micronutrients. 3 of 15 Complete Review Constants Periodic Table Part A You have prepared a saturated solution of X at 20°C using 35.0 g of water. How much more solute can be dissolved if the temperature is increase Ammonia has been studied as an alternative “clean” fuel for internal combustion engines, since its reaction with oxygen produces only nitrogen and water vapor, and in the liquid form it is easily tran Identify the missing isotope in the equation below: 1123Na 42He —> 72Li ?? work C Saved 1 attempts left Check my work If 4.56 X 10″ molecules of a substance have a mass of 5.07. what is the molar mass of the substance? 0.7572 g/mol < Prev 20 of 20 Use the References to access important values if needed for this question. What volume of hydrogen gas is produced when 14.7 g of sodium reacts completely according to the following reaction at 0°C a Saved work 1 attempts left Check my work How much water had to be added to 68.8 mL of the first solution to obtain the second solution? 28.7 ml HO Use the References to access important values if needed for this question. required to react completely with 48.4 How many grams of iron are L of chlorine gas according to the following reaction at 0� Use the References to access important values if needed for this question. How many grams of mercury(II) oxide are needed to produce 1.35 Lof oxygen gas according to the following reaction at 0°C and Saved Homework 3 attempts left Check my work Be sure to answer all parts. Calculate what volume of the following solutions is required to obtain 0.269 mol of each solute. (a) 0.284 M AICI L (b) 2.87 M Write the nuclear equation that shows iodine-132 undergoing alpha decay and the nuclear equation that shows iodine-132 undergoing positron decay A chemist is studying the following equilibirum, which has the given equilibrium constant at a certain temperature: 302(g) = 203(g) K,=5. * 10 He fills a reaction vessel at this temperature with 11. a synthesis problem: please show all steps 3 attempts left Check my work Be sure to answer all parts. Draw the products formed when pentanoic anhydride [(CH2CH2CH2CH2CO)20] is treated with the following reagent. Differentiate products by great Question 4. Identify the functional groups in the compounds that produced the 13C-NMR spectra pictured below.Question 4. Identify the functional groups in the compounds that produced the C-NMR spectra pictured below. Compound A Compound B Compound C What is the calculated value of the cell potential at 298K for an electrochemical cell with the following reaction, when the Cu? concentration is 1.13*10* M and the Ap concentration is 1.24 M? 3Cu?(a

Limiting Reactant and Excess Reactant (Late Night Labs)1. What happened

Question Limiting Reactant and Excess Reactant (Late Night Labs)1. What happened when you added test solution to the test tube filled with only copper sulfate solution?A. It was clear with a white precipitate.B. It was clear with no precipitate.C. It turned blue with a white precipitate.D. It turned dark blue with no precipitate.2. When you made your test solution, what chemicals did you add?A. Ammonia and copper sulfateB. Sodium sulfide and ammoniaC. Copper sulfate and sodium sulfideD. Ammonia and zinc sulfate3. What happened when you added test solution to the test tube filled with only sodiumsulfide solution?A. It was clear with no precipitate.B. It turned blue with no precipitate.C. It was clear with a white precipitate.D. It turned blue with a white precipitate.4. What happened when you mixed 5 mL of copper sulfate with 1 mL of sodium sulfide?A. It was clear with no precipitateB. It turned blue with a black precipitateC. It turned blue with a no precipitateD. It was clear with a white precipitate5. What happened when you mixed 3 mL of copper sulfate with 3 mL of sodium sulfide?A. It turned blue with a white precipitate.B. It turned blue with no precipitate.C. It was colorless with a black precipitate.D. It was colorless with no precipitate.6. What happened when you took the supernatant from the reaction of 3 mL copper sulfate with 3 mL sodium sulfide and added the test mixture?A. It turned blue with a white precipitate.B. It was clear with no precipitate.C. It was clear with a white precipitate.D. It turned blue with no precipitate.7. What happened when you mixed 1 mL of copper sulfate with 5 mL of sodium sulfide?A. It turned blue with no precipitate.B. It was colorless with a black precipitate.C. It was colorless with no precipitate.D. It turned blue with a white precipitate.8. What happened when you took the supernatant from the reaction of 1 mL copper sulfate with 5 mL sodium sulfide and added the test mixture?A. It was clear with a white precipitate.B. It turned blue with a white precipitate.C. It turned blue with no precipitate.D. It was clear with no precipitate.9. How many grams of precipitate formed when 5 mL of copper sulfate were reacted with 1 mL of sodium sulfide? Choose the closest answer.A. 0.410 gB. 27.410 gC. 27.000 gD. 0.010 g10. How many grams of precipitate formed when 4 mL of copper sulfate were reacted with 2 mL of sodium sulfide? Choose the closest answer.A. 27.419 gB. 0.019 gC. 27.000 gD. 0.419 g11. How many grams of precipitate formed when 3 mL of copper sulfate were reacted with 3 mL of sodium sulfide? Choose the closest answer.A. .029 gB. 27.0 gC. 27.429 gD. .429 g12. How many grams of precipitate formed when 2 mL of copper sulfate were reacted with 4 mL of sodium sulfide? Choose the closest answer.A. 0.019 gB. 27.419 gC. 27.000 gD. 0.419 g13. How many grams of precipitate formed when 1 mL of copper sulfate were reacted with 5 mL of sodium sulfide? Choose the closest answer.A. 0.410 g B. 0.010 g C. 27.000 g D. 27.410 g14. Under what conditions was the maximum amount of precipitate formed when the copper sulfate was added to the zinc sulfide?A. 1 mL CuSO4 5 mL Na2SB. 2 mL CuSO4 4 mL Na2SC. 5 mL CuSO4 1 mL Na2SD. 3 mL CuSO4 3 mL Na2S15. When the number of mL of CuSO4 exceeded the number of mL of Na2S, what happened to the supernatant upon the addition of the test solution and what does that indicate?A. The solution turned blue, suggesting that the concentration of Na2S was in excess of the concentration of CuSO4.B. A precipitate formed, suggesting that the concentration of CuSO4 was in excess of the concentration of Na2S.C. A precipitate formed, suggesting that the concentration of Na2S was in excess of the concentration of CuSO4.D. The solution turned blue, suggesting that the concentration of CuSO4 was in excess of the concentration of Na2S.16. When the number of mL of Na2S exceeded the number of mL of CuSO4, what happened to the supernatant upon the addition of the test solution and what does that indicate?A. The solution turned blue, suggesting that the concentration of Na2S was in excess of the concentration of CuSO4.B. The solution turned blue, suggesting that the concentration of CuSO4 was in excess of the concentration of Na2S.C. A precipitate formed, suggesting that the concentration of Na2S was in excess of the concentration of CuSO4.D. A precipitate formed, suggesting that the concentration of CuSO4 was in excess of the concentration of Na2S.17. When the number of mL of Na2S equaled the number of mL of CuSO4, what happened to the supernatant upon the addition of the test solution and what does that indicate?A. The solution turned blue, suggesting that the concentration of CuSO4 was in excess of the concentration of Na2S.B. The solution remained clear without a precipitate forming, suggesting that neither reagent was in excess.C. A precipitate formed, suggesting that the concentration of Na2S was in excess of the concentration of CuSO4.D. A precipitate formed, suggesting that the concentration of CuSO4 was in excess of the concentration of Na2S.18. Given that no reaction with the test solution occurred when 3 mL of 0.1 M CuSO4 was mixed with 3 mL of 0.1 M Na2S, what can be inferred?A. The molar ratio of CuSO4 to Na2S is 1:2 for the reaction.B. The molar ratio of CuSO4 to Na2S is 2:1 for the reaction.C. The molar ratio of CuSO4 to Na2S is 1:1 for the reaction.D. Nothing can be inferred about the stoichiometry.19. Why did the mass of the precipitate produced in the primary reaction reach its maximum when 3 mL of CuSO4 was mixed with 3 mL of Na2S?A. The ammonia is in excess.B. The CuSO4 is in excess.C. The Na2S is in excessD. The stoichiometry of the reaction is 1:1 and here, neither reagent is limiting.

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Question />i need help in this lab report from part 1 to 4 Attachment 1 Attachment 2 Attachment 3 Attachment 4 Attachment 5 Attachment 6 ATTACHMENT PREVIEW Download attachment IMG_8092 2.jpg g KHP g KHP mL NaOH trial x mL NaOH trial y g KHP = % Difference mL NaOH g KHP trial x mL NaOH trial y 2 13. If %Difference is greater than 1%, another sample (flask #3) should probably be weighed and titrated as above until you have two trials that agree within 1%. 14. When you have two trials within 1.00%, clean your burets and return them to where they were 15. Store your NaOH solutions. They’ll be needed for the next part of this lab. All other solutions (including your titrated solutions) may be flushed down the drain with wate Experimental Data Trial 1 Trial 2 Trial Trial (if necessary) (if necessary) Mass vial KHP 116. 84 48 120. 70898 Mass vial 416. 49495 120. 30842 Mass KHP 0. 45| |0. 48 VNaOH (final) 27 box/ 24. 8 ml VNaOH (initial) 3. Jonl 2.8 ml V NaOH 24.5 ml 22.7 ml MassKHP / VNaOH A.i) moles of base A.ii) Mbase B. Average Mbase REPORT [Show your calculations

I need help for the calculations ATTACHMENT PREVIEW Download attachment

Question I need help for the calculations ATTACHMENT PREVIEW Download attachment C3F477E4-62C0-40D2-B3F7-1BB47F7CA374.jpeg Data Sheet: Trial 1 Trial 2 18.3.2032 M7 M [ELI/Z 236°C 23-43 1. Mass of the metal cylinder 2. Initial temperature of metal 3. Initial temperature of water in Calorimeter 4. Mass of water in Calorimeter 5. Final temperature for metal

I would like to check my answers please.How many grams

Question I would like to check my answers please.How many grams are there in a 0.158 mole sample of CCl4? 24.3 gramsHow many atoms are there in 0.289 mole sample of sulfur?Question 2 options:1.74 x 1023 5.58 x 1024 5.43 x 1021 1.92 x 1024 Ans: 1.74 *10^233.After balancing the following equation, what would be the coefficient that would be needed for NaN3?NaN3 → Na N2Question 3 options:1234Ans: 3 4.What is the molar mass of Pb(NO3)2?Ans: 331.2 g/mol 5.How many moles are there in a sample of 7.55 x 1023 magnesium atoms?Question 6 options:0.051610.630.51.25Ans: 1.256.After balancing the following equation, what would be the coefficient that would be needed for H2?Mg H3PO4 → Mg3(PO4)2  H2 Question 7 options:1234Ans: 37.A pasta side contains 20 g of carbohydrate. If carbohydrate has a caloric value of 4 kcal/g, how many kcal or energy are from the carbohydrate in the potato?Question 9 options:1) 5 kcal2) 20 kcal3) 40 kcal4) 60 kcal5) 80 kcalAns: 80 kcal8.Which of the following is a property of a solid?Question 11 options:1) It takes the shape of the container.2) It takes the volume of the container.3) The particles move extremely fast.4) The interactions between the solid particles are very weak.5) The particles are in fixed positions and are very close together.Ans: The particles are in fixed positions and are very close together. 9.A gas can be compressed much more than a liquid or solid becauseQuestion 12 options:1) a gas is composed of very small particles.2) the gas molecules are very far apart.3) gas particles move rapidly.4) gas particles do not attract or repel one another.5) gas particles move faster when the temperature increases.Ans: the gas molecules are very far apart.10.Which measurement describes the pressure of a gas?Question 13 options:1) 515 K2) 1.5 g/L3) 2.5 L4) 760 mm Hg5) 0.45 molesAns: 760 mm Hg 11.The coldest temperature possible is:Question 14 options:1) 0 K2) – 273 °C3) −459.67° F4) none these values5) all of these valuesAns: 0 K12.Which of the following statements is correct?Question 15 options:1) In acids, [OH-] is greater than [H3O ].2) In bases, [OH-] = [H3O ].3) In neutral solutions, [H3O ] = [OH-].4) In bases, [OH-] is equal to [H3O ].5) In bases, [OH-] is less than [H3O ].Ans: In neutral solutions, [H3O ] = [OH-].13.How many moles of glucose are present in 0.90 L of a 0.200 M solution?Ans: 0.18 mol 14.The conjugate base of H2O is:Question 17 options:1) H3O 2) OH-3) H2O4) O2-5) H2O is not an acid or baseAns: OH- 15.When an element undergoes both oxidation and reduction the reaction is called a redox reaction.Question 22 options:TrueFalse Ans: True16.In the reaction 3Ag   Al → Al3   3Ag which is the oxidizing agent?Question 23 options:AgAlAl3 Ag Ans: Ag 17.What does the law of conservation of matter mean in chemistry?Question 24 options:The total number of molecules of reactants should equal the number of molecules of the products.The state of the matter should remain the same throughout the reaction.The types of compounds cannot change after a chemical change.The number of atoms of an element remains the same before and after a chemical change.Atoms change during a chemical reaction but the overall number of molecules is unchanged.Ans: The number of atoms of an element remains the same before and after a chemical change.18.One mole of chlorine molecules has a mass of 70.906 g. 70.906 u is known as chlorine’s _____.Question 27 options:molar massmolecular massatomic massatomic numberavogadro numberAns: molar mass 19.Three moles of (NH4)2Fe(SO4)2·6H2O contains _____ moles of H2O.Question 28 options:3691218Ans: 12 20.In the reaction 2H2  O2 → 2H2O, 18 g of water is produced when 9 g of oxygen is fully reacted.Question 29 options:TrueFalseAns: True21.If a sample contains 13.56 mol of Na2SO4, how many moles of sodium atoms does it have?Question 30 options:13.5626.4527.1254.2440.68Ans: 27.12 22.How many moles of NaCl are present in 20.0 g of NaCl?Question 31 options:58.41.0129.20.3420. 0143Ans: 0.342 23.How much heat is necessary to vaporize 400 g of H2O at 100°C? The heat of vaporization of H2O is 540 cal/g?Question 33 options:400 cal40,000 cal54,000 cal216,000 cal3699 calAns: 216,000 cal24.Glucose and other sugars are examples of carbohydrates.Question 34 options:TrueFalseAns: True 25.Charles’s law can be defined by using the formula, ViTf = VfTi.Question 36 options:TrueFalseAns: True26.A gas that follows the “kinetic theory of gases” perfectly is called an ideal gas.Question 37 options:TrueFalseAns: True27.Given the following conditions for a gas: Ti = 27°C, Vi = 1,260 cm3, Vf = 12.60 L. What is Tf?Question 38 options:27°C3,000 K270°C300 K2,700 KAns: 3,000 K 28.A covalent bond that has an equal sharing of electrons, as in a covalent bond with the same atom on each side, is called a nonpolar covalent bond.Question 39 options:TrueFalseAns: True 29.What is the volume in liters of 1.38 mol of Ar gas at 400.0 K and 4.00 atm?Question 40 options:11.3 L45.2 L2.83 L0.453 L22.6 LAns: 11.3 30.Which of the following is a solution?Question 41 options:Oil in waterSand in waterSoilPure goldSteelAns: Soil31.The solutions of which of the following solutes will conduct electricity well when dissolved?Question 45 options:CH3CH2OHC(CH3)4HCHOHCOOC2H5NaBrAns: CH3CH2OH 32.Which of the following is an Arrhenius acid?Question 46 options:KOHBa(OH)2NaNH2H3PO4NaHAns: H3PO433.According to the Arrhenius definition of an acid, NaOH is an acid.Question 47 options:TrueFalseAns: False 34.A pH below 7 indicates a basic solution.Question 49 options:TrueFalseAns: False 

If you know the number of moles in a sample

Question If you know the number of moles in a sample of a substance, which of the following do you also know about that sample?the mass of that samplethe volume of that samplethe number of representative particles in that samplethe coefficient of the substance when in a chemical reaction

What is the percent yield for the reaction, CaCO3 style=”color:rgb(0,0,0);”>

Question What is the percent yield for the reaction, CaCO3 style=”color:rgb(0,0,0);”> –>   CaO CO2 , if 13.1 grams of CaO is actually produced when 24.8 grams of CaCO3 is heated? Please show work and equation setup, thank you

A mixture of 65 mol % methanol (methyl alcohol) and

Question A mixture of 65 mol % methanol (methyl alcohol) and 35 mol% ethanol (ethylalcohol) exist in the vapor phase at 101°C. The pressure is increased until the firstdrop begins to condense. At what pressure does condensation begin, and what isthe composition of the first drop of liquid.

1.) Toluene is soluble in both water and ligroin. Select

Question 1.) Toluene is soluble in both water and ligroin. Select one:TrueFalse

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