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I got a step by step assignment, that I have

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Question I got a step by step assignment, that I have to do by tomorrow. It is really easy, just basically got to follow directions, my Phet lab will not open on neither of my computers, will somebody help please?

If taken together, rifampicin enhances the effects of nevirapine. True

Question If taken together, rifampicin enhances the effects of nevirapine. True False

A 5.0 gallon container contains 15.0 moles of propane gas

Question A 5.0 gallon container contains 15.0 moles of propane gas at room temperature (20. °C). What is the pressure of the gas? (1.0 gal = 3.79 L)

A container holds 15.0 g of phosphorous gas at a

Question A container holds 15.0 g of phosphorous gas at a pressure of 2.0 atm and a temperature of 20.0 Celsius. What is the density of the gas ?

What is the volume of an object with a density

Question What is the volume of an object with a density of 24.5 g/cm³ and a mass of 8.2 g ???

A gas sample has a volume of 178 ml of

Question A gas sample has a volume of 178 ml of 0.00 degrees c. the temperature is raised (at constant pressure) until the volume reaches 211 ml. what is the temperature of the gas sample in degrees c at this volume?

  1. Assume that you are a physician administering a drug in

Question

  1. Assume that you are a physician administering a drug in a solution containing 5.0 mg drug/L solution. If the recommended dosage of the drug is 3.5 × 10-6 g per kilogram of body weight, what volume of solution would you prescribe daily for a 68 kg patient?

This question was created from Experiment 2.docx https://www.coursehero.com/file/27107891/Experiment-2docx/ how do

Question This question was created from Experiment 2.docx https://www..com/file/27107891/Experiment-2docx/ how do I begin this question ATTACHMENT PREVIEW Download attachment 27107891-326592.jpeg Pre- Lab Questions: 1. Calculate mass percent of NaCl in the solution containing 4.580g of NaCl. The total mass of the solution is 48.898g.

This question was created from Experiment 2.docx https://www.coursehero.com/file/27107891/Experiment-2docx/ I do

Question This question was created from Experiment 2.docx https://www..com/file/27107891/Experiment-2docx/ I do I calculate this? whats the first step to take? ATTACHMENT PREVIEW Download attachment 27107891-326593.jpeg 3. Explain any similarities in the sugar contents of these beverages? Calculate how many grams of sugar you would be consuming if you drank a typical 20 oz (591 mL) glass full of each beverage that you tested in your experiment today?

ranking. Identify the components of each mixture. CRITICAL THINKING QUESTIONS:

Question ranking. Identify the components of each mixture. CRITICAL THINKING QUESTIONS: (please answer in complete sentences) 1. Which food dye is the most polar? What functional groups are present in this dye? 2. Which food dye is the least polar? What functional groups are present in this dye? 3. Can you make any generalizations about the polarities of certain colors? (for examples, are red dyes generally more polar than blue dyes?) 4. To what class of compounds does the solvent 2-propanol belong? What functional group is present in the solvent? 5. How did the results of the experiment compare to your hypothesis? Instructors may add supplemental questions. 

look at the attachment and let me know if there is any

look at the attachment and let me know if there is any question

Please help with both pages on trial 1 and 2,

Question Please help with both pages on trial 1 and 2, I am confused. alt=”A874C4F1-267F-4461-91D7-ECF0BC65D2D3.jpeg” /> Attachment 1 Attachment 2 ATTACHMENT PREVIEW Download attachment 83ADFC2E-355F-4CF5-81CB-48ABB7A67F39.jpeg EXERCISE 20 NAME LAB SECTION DATE Report on Part !! Analysis of Ammonia Standardization of NaOH: Trial 1 Trial 2 Triat 3 Molarity of Standard HCI 0. 324 8 M 0 . 324 8 M Final buret reading for HCI 405 m 4.10 mb Initial buret reading for HCI 2.OUnL 0.00 /ML Volume of HCI 4.10 mL 4/10 ML Final buret reading for NaOH 12.00 ml / 24. 30 Initial buret reading for NaOH 12.00 Volume of NaOH 12.00 ML 12. 30 Molarity of NaOH solution Average molarity ATTACHMENT PREVIEW Download attachment A874C4F1-267F-4461-91D7-ECF0BC65D2D3.jpeg 284 EXPERIMENT 20 Synthesis and Analysis of an Amminenickel(II) Compound Analysis of Ammonia: Trial 1 Trial 2 Trial 3 Mass of flask and sample 121. 720 100.107 121. 620 Mass of flask 10 0. 093 Mass of sample 0.100 0893 0. 114 Molarity of HCI Final buret reading of HCI 12. 00 ml 24.00 m Initial buret reading of HCI 0. 00m 12.00 ML Volume of HCI Moles of HCI added Molarity of NaOH solution Final buret reading of NaOH 10. 20ml 23.40 al Initial buret reading of NaOH O.0OnL 10.20m Volume of NaOH 10. 20 ML 13.2 0ml Moles of NaOH added Moles of HCI consumed by compound Moles of NH, in sample Moles of NH3 per gram of sample Average moles of NH, per gram of sample Mass percentage of NH in compound Average mass percentage of NH, in compound

Discuss how the kelvin temperature is related to amontons law

Question Discuss how the kelvin temperature is related to amontons law and how, even though most gasses can’t exist below 150 , scientists were able to establish 0 k?

Anaslysis and Discussion ATTACHMENT PREVIEW Download attachment Screenshot (44).png Buffers

Question Anaslysis and Discussion ATTACHMENT PREVIEW Download attachment Screenshot (44).png Buffers Calculations 1) Write the equation for the dissociation of the acetic acid. 2) Write the equation for the reaction that occurs when HCI is added to an acetic acid/sodium acetate buffer solution. 3) Write the equation for the reaction that occurs when NaOH is added to an acetic acid/sodium acetate buffer solution. 4) Write the equation for the dissociation of the weak acid H2PO4

Thee following equilibrium has been established in an insulated steel

Question Thee following equilibrium has been established in an insulated steel vessel at a constant pressure: 2NH3C(g) ⇌ N2(g) 3CH2(g) △H° = 92.4 kJ/mol Adding helium gas to the vessel will cause the system temperature to _____. (A) increase (B) decrease (C) no change (D) cannot determine 

1) Which answer best completes the sentence below?An example of

Question 1) Which answer best completes the sentence below?An example of an intensive physical property is _____ while an example of an extensive physical property is _____.1) mass, smell2) color, boiling point3) density, volume4) shape, length2) Which answer best completes the following sentence?_____ is an example of physical change while _____ is an example of a chemical change. 1) Evaporating rubbing alcohol, boiling nitrogen2) Burning wood, dissolving salt in water3) Boiling water, rusting of iron4) Bending a piece of aluminum, condensing water vapor 3) The color and boiling point of a substance are both examples of 1) intensive properties because they depend on the amount of matter in the sample.2) intensive properties because they do not depend on the amount of matter in the sample.3) extensive properties because they depend on the amount of matter in the sample.4) extensive properties because they do not depend on the amount of matter in the sample.4) The ability of sodium chloride to dissolve in water is an example of a1) chemical property.2) chemical change.3) physical property.4) physical change. 5) What coefficients must be added to balance the following reaction?_____ Sn _____ H3PO4  _____ H2  _____ Sn3(PO4)4 1) 3, 2, 3, 12) 3, 4, 3, 13) 3, 4, 4, 14) 3, 4, 6, 1 6) Which of the following equations violates the law of conservation of mass?1) 2Al 6HCl  2AlCl3  3H22) Na2C2O4  Pb(NO3)2  PbC2O4  2NaNO33) AgNO3  LiCl  AgCl LiNO34) 3Ca 2Cr(NO3)3  3Ca(NO3)3  2Cr 7) According to the activity series, which of the following single replacement reactions will take place and result in a reaction?1) nickel and aluminum chloride2) barium and copper bromide3) potassium nitrate and aluminum4) sodium phosphate and zinc 8) Which of the following is not a correct chemical equation for a double displacement reaction? 1) 2RbNO3  BeF2  Be(NO3)2  2RbF2) CaCl LiCO3  CaCO3  LiCl3) Na3PO4  3KOH  3NaOH K3PO44) 2MgI2  Mn(SO3)2  2MgSO3  MnI4 9) Write the complete balanced equation for the reaction that occurs when calcium carbonate (CaCO3) reacts with lithium nitride (Li3N) in an aqueous solution.10) Which of the following shows the balanced equation for the reaction that represents the decomposition of magnesium chlorate (Mg(ClO3)2)? 1) 2Mg(ClO3)2  2MgCl2  3O22) Mg(ClO3)2  MgCl2  3O23) 2MgCl2  3O2  2Mg(ClO3)24) MgCl2  3O2  Mg(ClO3)2

11) Which of the following is a product formed when

Question 11) Which of the following is a product formed when BaO and H2O react together? />1) BaO2) H23) O24) Ba(OH)212) Write the complete balanced equation for the decomposition of water (H2O).13) What is always true of a combustion reaction? 1) water will always be one of the products2) the reaction releases a large amount of energy3) one reactant must contain hydrogen4) carbon dioxide is one of the reactants14) Which of the following will be produced when lithium metal (Li) is combusted?1) O22) LiO3) H2O4) Li2O15) Upon balancing the equation below, how many moles of calcium chloride are needed to react completely with 4.3 moles of silver nitrate?AgNO3  CaCl2  AgCl Ca(NO3)2 1) 1.4 mol CaCl22) 2.2 mol CaCl23) 4.3 mol CaCl24) 8.6 mol CaCl216) When 135 grams of titanium tetrachloride react with an excess of water, as shown in the unbalanced chemical equation below, how many grams of hydrochloric acid will be produced? Please show all your work for the calculations for full credit.TiCl4  H2O  TiO2  HCl17) When 3.5 mol Al react with 12.5 mol HCl, what is the limiting reactant and how many moles of H2 can be formed?2Al 6HCl  2AlCl3  3H21) Al is the limiting reactant, and 3.5 mol H2 can be formed2) HCl is the limiting reactant, and 3.2 mol H2 can be formed3) Al is the limiting reactant, and 5.3 mol H2 can be formed4) HCl is the limiting reactant, and 6.3 mol H2 can be formed18) How many moles of H2O can be formed when 4.5 moles of NH3 react with 3.2 moles of O2?NH3  O2 NO H2OBe sure to balance the equation.1) 3.8 mol H2O2) 4.8 mol H2O3) 6.4 mol H2O4) 6.8 mol H2O19) If the reaction of 5.75 moles of sodium with excess hydrofluoric acid produced an 86.5% yield of hydrogen gas, what was the actual yield of hydrogen gas?Unbalanced equation: Na HF  NaF H21) 1.66 mol H22) 2.49 mol H23) 2.88 mol H24) 3.33 mol H2 20) If 12.8 grams of iron (III) oxide react with 11.5 grams of carbon monoxide to produce 6.10 g of pure iron, what are the theoretical yield and percent yield of this reaction? Be sure to show the work that you did to solve this problem.unbalanced equation: Fe2O3  CO  Fe CO2 

When a galvanic cell is being discharged, its voltage decreases

Question When a galvanic cell is being discharged, its voltage decreases because _____. (A) the temperature of the cell increases (B) reactants are being consumed (C) ions in the salt bridge are being depleted 

The anion I42- is linear. The anion I5- is bent,

Question The anion I42- is linear. The anion I5- is bent, with a 95° angle at the central iodine atom. Draw valid Lewis structures for each of these ions. What orbital hybridizations are consistent with the molecular geometries?

HF is a weak acid and its Ka is 1.8×10-5.

Question HF is a weak acid and its Ka is 1.8×10-5. Calculate the pH of a solution of 0.3C00 M NaF. 

Analyse the following spectra give full explanations of each spectra

Question Analyse the following spectra give full explanations of each spectra how you interpreted these ? Also give the structure of bond and bonds number. Give reasons of yours answer in explanation. Attachment 1 Attachment 2 ATTACHMENT PREVIEW Download attachment attachment_08072019.png 8 R Spectrum (liquid film) 1715 3000 2000 1600 1200 800 0.0 4000 V (cm ) 100 43 Mass Spectrum 0.5 BO 91 absorbance UV spectrum solvent : cyclohexane M 7.90 mg / 10 mls 20 %% of base peak 134 path length : 0.50.cm CH100 1.5 40 80 120 160 200 240 280 200 250 300 350 m/e 2 (nm) 13C NMR Spectrum (50.0 MHz, CDCI, solution) DEPT CH21 CHat CHI proton decoupled solvent 200 160 120 80 40 0 8 (ppm) 1H NMR Spectrum (200 MHz, CDCl3 solution) TMS 10 9 8 7 6 5 4 3 2 1 0 8 (ppm)Read more ATTACHMENT PREVIEW Download attachment attachment_08072019.png 8 R Spectrum (liquid film) 1715 3000 2000 1600 1200 800 0.0 4000 V (cm ) 100 43 Mass Spectrum 0.5 BO 91 absorbance UV spectrum solvent : cyclohexane M 7.90 mg / 10 mls 20 %% of base peak 134 path length : 0.50.cm CH100 1.5 40 80 120 160 200 240 280 200 250 300 350 m/e 2 (nm) 13C NMR Spectrum (50.0 MHz, CDCI, solution) DEPT CH21 CHat CHI proton decoupled solvent 200 160 120 80 40 0 8 (ppm) 1H NMR Spectrum (200 MHz, CDCl3 solution) TMS 10 9 8 7 6 5 4 3 2 1 0 8 (ppm)Read more

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