What is the enthalpy change for the dissolution

Assignment Help Chemistry
Reference no: EM132753699

1. What quantity of heat is liberated by a reaction that produces 50.0 g of SO2 in the following reaction? 2 NiS(s) + 3 O2(g) ◊ 2 NiO + 2 SO2(g) ΔH o = -936.2 kJ

2. Upon adding solid potassium hydroxide pellets to water the following reaction takes place:

KOH(s) → KOH(aq) + 43 kJ/mol

Answer the following questions regarding the addition of 14.0 g of KOH to water:

a) Does the beaker get warmer or colder?

b) Is the reaction endothermic or exothermic?

c) What is the enthalpy change for the dissolution of the 14.0 grams of KOH?

Reference no: EM132753699

Questions Cloud

Write the chemical reaction : What environmental issue is each of the following chemicals associated with and write the chemical reaction it produces or reacts with it. CO2 and CCl3F.
What two physical properties of the products : What two physical properties of the products of the sodium hydroxide and copper (II) sulphate reaction were different from the rectants?
What should the reader hope to gain from this project : What should the reader hope to gain from this project? Find a quotation, anecdote, news item, or some other element on the topic that can incite such interest
Name the environmental issue : Name the environmental issue each of the following chemicals is associated with and write the chemical reaction that produces it or reacts with it.
What is the enthalpy change for the dissolution : What quantity of heat is liberated by a reaction that produces 50.0 g of SO2 in the following reaction? 2 NiS(s) + 3 O2(g) ? 2 NiO + 2 SO2(g) ?H o = -936.2 kJ
Sodium hydroxide and copper : What evidence is there to support the fact that sodium hydroxide and copper (II) Sulphate are a chemical change
What physical process does the equation describe : What physical process does the following equation describe?CO2(g) --> CO2(aq)
Explain auditors understanding of corporate governance : Explain auditors understanding of corporate governance revision, update and arguments after SOX Act (2002) - Explain your selected companys
Estimate the length of the unknown dna : The following data were obtained. Estimate the length of the unknown DNA, in base pairs.

Reviews

Write a Review

Chemistry Questions & Answers

  Steps in the mechanism for the following reaction

Show all the steps in the mechanism for the following reaction, When benzene is mixed with deuterated sulfuric acid, deuterium is slowly incorporated onto the ring. Show the mechanism for this reaction and explain how this relates the sulfonation of ..

  Prior to placing piece of metal into the graduated cylinder

This assignment inhibits chemistry Laboratory Questions.

  Write the structures of the saytzeff elimination

Write the structures of the saytzeff elimination

  Calculate ph - chemistry questions

Chemistry Questions on Calculate P H

  How many mols of hydrogen can produce

how many mols of H 2 can produce

  Analysis of corrosion mechanisms

Analysis of corrosion mechanisms and preventative measures

  Chemical and pharmaceutical science

Write an equation for the formation of an acetal from reaction of excess methanol with benzaldehyde in the presence of an acid catalyst.

  Calculate the approximate sulphur

Calculate the approximate SO 2 mass emission in lb/day.

  What is the structure - stereochemistry

What is the structure (including functional groups)? Stereochemistry (racemic or single enantiomer)?

  Design a qualitative analysis scheme

Design a qualitative analysis scheme

  What will be the resultant pressure

What will be the resultant pressure when the stopcock is opened?

  The 1h nmr spectrum

Integrals for some of the resonances in the 1H NMR spectrum are higher than they should be due to the shear number of hydrogens in this compound

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd