Best writers. Best papers. Let professionals take care of your academic papers

Order a similar paper and get 15% discount on your first order with us
Use the following coupon "FIRST15"
ORDER NOW

So I have to calculate the change in enthalpy for

/in /by

Question So I have to calculate the change in enthalpy for this equation. Is it possible? There are 4 reactants and products, but I only have 2 heat of formation equations. And even then, which equation would I use to calculate the heat of formation for the 2.5O2 since both equations have O2?2CO2 2H2O –> C2H4O 2.5O2Heat of Formations:2C2H6O O2 –> 2C2H4O 2H2O Change: -407 kJC2H6O 3O2 –> 2CO2 3H2O Change: -1371 kJThanks!

How do your silver nitrate and sodium thiosulfate results differ

Question How do your silver nitrate and sodium thiosulfate results differ from the silver nitrate and ammonia results?

This question was created from work.docx https://www.coursehero.com/file/39719129/workdocx/ CH4 (g)

Question This question was created from work.docx https://www..com/file/39719129/workdocx/ CH4 (g) H2O (g) heat ↔ CO (g) 3 H2 (g) [0.012] [0.0275] [0.0383] [0.115] ATTACHMENT PREVIEW Download attachment 39719129-337123.jpeg

If iodine is nonpolar and vinegar is polar how are

Question If iodine is nonpolar and vinegar is polar how are they able to mix together

Do not understand, please help with the following questions. ATTACHMENT

Question Do not understand, please help with the following questions. ATTACHMENT PREVIEW Download attachment 6c.png 10. Acidic MnO,‘ solution reacts with ethanol, CHSCI-IZOH, to produce acetic acid, (II-ISCOOH. a. Write a balanced equation for the reaction. (5 marks) b. What volume of 0.200 M MnOf solution is needed to titrate 22.5 mL of a 0.350 M solution of ethanol? (5 marks) A concentration cell has a standard Zn2 cathode (1 M @9103): / Zn electrode) and a saturated (Zn(OH)2 I Zn electrode) anode. The cell potential is measured to be 0.169 V. a. Write the two half-reactions, labelling all species with their corresponding states (g3, s) and electrode (cathode and anode). (2 marks) b. Determine the concentration of [Zn2 ] of the anode, and the 553 of mom; (8 marks) a. Give the cell diagram notation of the electrochemical cell that could be used to determine experimentally the dissociation constant (Kw) of water. The standard reduction potential for 02 ZHZO 4e‘ —I- 40H” is 0.40V For other possible half-reactions, see Table 18.1 of your textbook. Calculate E° for this cell. (5 marks) b. Use your value from part (a) to calculate the dissociation constant at 298 K. (5 marks) The concentration of potassium ions inside a nerve cell is around 25 times that outside the cell. Calculate the potential difference between inside and outside a nerve cell, if it depends only on this ionic imbalance. For simplicity, pretend that the temperature = 25°C (standard) even though body temperature is higher than that. (10 marks)

/>These questions were not answered when i posted them Attachment

Question />These questions were not answered when i posted them Attachment 1 Attachment 2 ATTACHMENT PREVIEW Download attachment 10.PNG ATTACHMENT PREVIEW Download attachment k.PNG

The mass of an object is 205 gram while the

Question The mass of an object is 205 gram while the volume was measured to be 82.5 mL. What is this object’s density ?

A 118-mL flask is evacuated and found to have a

Question A 118-mL flask is evacuated and found to have a mass of 97.129 g. When the flask is filled with 768 torr of helium gas at 35 °C, it has a mass of 97.171 g. Was the helium gas pure?

In the ICl 2 – ion, how many valence electrons

Question In the ICl 2 – ion, how many valence electrons are there surrounding the central iodine atom?

I have a a simple exercise ( watching Video and answer short

I have a a simple exercise ( watching Video and answer short question )regarding Manufacturing Practice

I uploaded for you everything you need.I just want you to finish

I uploaded for you everything you need.I just want you to finish this homework as soon as possible please 🙂

Please help me with the following question: Construct a pH

Question Please help me with the following question: Construct a pH titration curve for 50 mL of 0.10 M butyric acid, C3H7COOH (for which Ka = 1.54 × 10-5), against added 0.10 M KOH solution. Please show the calculations for the individual points, and draw the curve on proper graph paper.  Indicate on your graph the mid-equivalence point and the equivalence point. Suggest a satisfactory indicator for the endpoint if you were to use titration in the laboratory. 

This question was created from Lab 10 table 2.docx https://www.coursehero.com/file/38194551/Lab-10-table-2docx/

Question This question was created from Lab 10 table 2.docx https://www..com/file/38194551/Lab-10-table-2docx/ How exactly do you get these calculations? How do we show the work for these? ATTACHMENT PREVIEW Download attachment 38194551-337260.jpeg Table 2. Specific Heat Data Trial 1: Trial 1: Time Trial 1: Temp Trial 2: Time Trial 2: Temp Trial 3: Time Trial 3: Temp (minutes (

A dose of aspirin of 5.0 mg/kg body weight has

Question A dose of aspirin of 5.0 mg/kg body weight has been prescribed to an infant weighing 8.5 lbs. how many milligrams of aspirin needs to be administered?

Hello, can you please help me with the following question.

Question Hello, can you please help me with the following question. 1.  Heliox is a helium-oxygen mixture used in scuba diving. At 298K in a 16.0 L tank, the partial pressures of helium and oxygen are 18.5 atm and 0.413 atm, respectively. a.    Calculate the total pressure of the gas mixture.b.    Calculate the mole fractions of each component of the mixture. c.    Calculate the mass of each component in the mixture. 2.   At STP, air can be considered a mixture of ideal gases: 21.0% O2, 78.0% N2, and 1.00% Ar by volume.a.      Calculate the partial pressure of each gas at STP. b.      Briefly explain Dalton’s law of partial pressures, using the kinetic theory of gases. c.       Calculate the density of air in g L-1 at STP. 

Nonsteroidal anti-inflammatory drugs (NSAIDS) block the actions of the COX

Question Nonsteroidal anti-inflammatory drugs (NSAIDS) block the actions of the COX enzymes and their production of eicosanoids from ___.a. steroidsb. arachidonic acidc. sphingolipidsd. phospholipids

explanation of the formation of ionic compounds.

Question explanation of the formation of ionic compounds.

Need help with the following questions: 7. Acidic MnO4- solution

Question Need help with the following questions: 7. Acidic MnO4- solution reacts with ethanol, CH3CH2OH, to produce acetic acid, CH3COOH.a.      Give a balanced equation for the reaction. b.      What volume of 0.200 M MnO4- solution is needed to titrate 22.5 mL of a 0.350 M solution of ethanol?8.A concentration cell has a standard Zn2 cathode (1 M Zn(NO3)2/ Zn electrode) and a saturated (Zn(OH)2/ Zn electrode) anode. The cell potential is measured to be 0.169 V.a.      Write the two half-reactions, labelling all species with their corresponding states (aq, s) and electrode (cathode and anode). b.      Determine the concentration of [Zn2 ] of the anode, and the Kspof Zn(OH)2. 

This question was created from Enthalphy of Fusion of Ice

Question This question was created from Enthalphy of Fusion of Ice LAB.docx https://www..com/file/31733448/Enthalphy-of-Fusion-of-Ice-LABdocx/ I need to work and the answer to this! ATTACHMENT PREVIEW Download attachment 31733448-337275.jpeg a. A sample in a calorimeter absorbed 7.18 kJ as it melted. However, the liquid sample remained at the same temperature at which it melted: it never warmed after melting. What was the Qwater for this process?

Please help me in the following questions attached,

Question Please help me in the following questions attached,

Please help me with the following questions attached below: alt=”5G.png”

Question Please help me with the following questions attached below: alt=”5G.png” /> ATTACHMENT PREVIEW Download attachment 5G.png 8. Calculate AGo combustion at 25 C of octane, CH (1), 2CH18(0) 2502(g) 16CO2(g) 18H20() , using the following thermodynamic data and that given in Appendix 2 of your textbook. For C.H, (), AH,=-208.4 kJ mol and So = 463.7 J K mol www Give your answer in kJ mol of C H, (1). 9. Determine the temperature range at which carbon can reduce iron(III) oxide to iron: 2Fe203(S) 3C(s)

The post So I have to calculate the change in enthalpy for appeared first on Smashing Essays.

 
Looking for a Similar Assignment? Order now and Get 10% Discount! Use Coupon Code "Newclient"