Study Guide for Chemistry: The Central Science
13th Edition
ISBN: 9780321949288
Author: Theodore E. Brown, James C. Hill
Publisher: PEARSON
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Chapter 19, Problem 113IE
The following data compare the standard enthalpies and free energies of formation of some crystalline ionic substances and aqueous solutions of the substances:
| Substance | ΔHof(kJ/mol) | ΔGof(kJ/mol) |
| AgNO3(s) | -124.4 | -33.4 |
| AgNO3(aq) | -1017 | -34.2 |
| MgSO,(s) | -1283.7 | -1169.6 |
| MgSO4(aq) | -1374.8 | - 1198.4 |
Write the formation reaction for AgNO3(s). Based on this reaction, do you expect the entropy of the system to increase or decrease upon the formation of AgNO3(s)? (b) Use ΔHofand ΔGofof AgNO3(s) to determine the entropy change upon formation of the substance. Is your answer consistent with your reasoning in part (a)? (c) Is dissolving AgNO3 in water an exothermic or endothermic process? What about dissolving MgSO4 in water? (d) For both AgNO3 and MgSO4, use the data to calculate the entropy change when the solid is dissolved in water, (e) Discuss the results from part (d) with reference to material presented in this chapter and in the “A Closer Look” box on page 820.
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Chapter 19 Solutions
Study Guide for Chemistry: The Central Science
Ch. 19.1 - The process of iron being oxidized to make...Ch. 19.1 - Prob. 19.1.2PECh. 19.2 - Do all exothermic phase changes have a negative...Ch. 19.2 - Prob. 19.2.2PECh. 19.3 - Prob. 19.3.1PECh. 19.3 - Prob. 19.3.2PECh. 19.3 - Suppose you have two 1-L flasks, one containing N2...Ch. 19.3 - Prob. 19.4.2PECh. 19.4 -
10.8
Place the following gases in order of...Ch. 19.4 - Prob. 19.5.2PE
Ch. 19.5 - Prob. 19.6.1PECh. 19.5 - Prob. 19.6.2PECh. 19.5 - Prob. 19.7.1PECh. 19.5 - Prob. 19.7.2PECh. 19.5 - Prob. 19.8.1PECh. 19.5 - Prob. 19.8.2PECh. 19.6 - Prob. 19.9.1PECh. 19.6 - Prob. 19.9.2PECh. 19.7 - Prob. 19.10.1PECh. 19.7 - Prob. 19.10.2PECh. 19.7 - Prob. 19.11.1PECh. 19.7 - Prob. 19.11.2PECh. 19.7 - Prob. 19.12.1PECh. 19.7 - Prob. 19.12.2PECh. 19 - Prob. 1DECh. 19 - Prob. 1ECh. 19 - Prob. 2ECh. 19 - Prob. 3ECh. 19 - Prob. 4ECh. 19 - Prob. 5ECh. 19 - Prob. 6ECh. 19 - 11.47 Indicate whether each statement is true or...Ch. 19 - Prob. 8ECh. 19 - Prob. 9ECh. 19 - Prob. 10ECh. 19 - Prob. 11ECh. 19 - Prob. 12ECh. 19 - Prob. 13ECh. 19 - Prob. 14ECh. 19 - A glass vessel fitted with a stopcock valve has a...Ch. 19 - Prob. 16ECh. 19 - Prob. 17ECh. 19 - Prob. 18ECh. 19 - Prob. 19ECh. 19 - Prob. 20ECh. 19 - Prob. 21ECh. 19 - Consider what happens when a sample of the...Ch. 19 - Prob. 23ECh. 19 - Prob. 24ECh. 19 - The normal boiling point of Br2(l) is 58.8 °C, and...Ch. 19 - Prob. 26ECh. 19 - Prob. 27ECh. 19 - Prob. 28ECh. 19 - Prob. 29ECh. 19 - Prob. 30ECh. 19 - Prob. 31ECh. 19 - Prob. 32ECh. 19 - Prob. 33ECh. 19 - Prob. 34ECh. 19 - 19.35 (a) What do you expect for the sign of ∆S in...Ch. 19 - Prob. 36ECh. 19 - Prob. 37ECh. 19 - Prob. 38ECh. 19 - Prob. 39ECh. 19 - Prob. 40ECh. 19 - For each of the fallowing pairs, choose the...Ch. 19 - Prob. 42ECh. 19 - Prob. 43ECh. 19 - Prob. 44ECh. 19 - Prob. 45ECh. 19 - Prob. 46ECh. 19 - Prob. 47ECh. 19 - Cyclopropane and propylene are isomers that both...Ch. 19 - Prob. 49ECh. 19 - Prob. 50ECh. 19 - Prob. 51ECh. 19 - Prob. 52ECh. 19 - Prob. 53ECh. 19 - Prob. 54ECh. 19 - Prob. 55ECh. 19 - Prob. 56ECh. 19 - Prob. 57ECh. 19 - Prob. 58ECh. 19 - Using data in Appendix C, calculate HO, SO,...Ch. 19 - Prob. 60ECh. 19 - Prob. 61ECh. 19 - Prob. 62ECh. 19 - Prob. 63ECh. 19 - Prob. 64ECh. 19 - Prob. 65ECh. 19 - From the values given for H° and S°, calculate G°...Ch. 19 - Prob. 67ECh. 19 - Prob. 68ECh. 19 - Prob. 69ECh. 19 - Prob. 70ECh. 19 - Prob. 71ECh. 19 - Prob. 72ECh. 19 - (a) Use data in Appendix C to estimate the boiling...Ch. 19 - Prob. 74ECh. 19 - Prob. 75ECh. 19 - Prob. 76ECh. 19 - Prob. 77ECh. 19 - Prob. 78ECh. 19 - Consider the reaction 2 NO2(g) (N2O4(g). (a)...Ch. 19 - Prob. 80ECh. 19 - Prob. 81ECh. 19 - Prob. 82ECh. 19 - Prob. 83ECh. 19 - Prob. 84ECh. 19 - Prob. 85ECh. 19 - The Kb, for methylamine (CH3NH2) at 25oC is given...Ch. 19 - Prob. 87AECh. 19 - Prob. 88AECh. 19 - Prob. 89AECh. 19 - Prob. 90AECh. 19 - Prob. 91AECh. 19 - Prob. 92AECh. 19 - Prob. 93AECh. 19 - Prob. 94AECh. 19 - Prob. 95AECh. 19 - Prob. 96AECh. 19 - Consider the following three reactions: (i) Ti (s)...Ch. 19 - Prob. 98AECh. 19 - (a) For each of the following reactions, predict...Ch. 19 - Prob. 100AECh. 19 - Prob. 101AECh. 19 - Prob. 102AECh. 19 - Prob. 103AECh. 19 - Prob. 104AECh. 19 - Prob. 105AECh. 19 - Prob. 106AECh. 19 - Most liquids follow Trouton’s rule (see Exercise...Ch. 19 - 19.108 In chemical kinetics the entropy of...Ch. 19 - Prob. 109IECh. 19 - Prob. 110IECh. 19 - Prob. 111IECh. 19 - Prob. 112IECh. 19 - The following data compare the standard enthalpies...Ch. 19 - Prob. 114IECh. 19 - Prob. 115IECh. 19 - Prob. 116IE
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