Comments re Chapter 10 Problems:
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10-1 |
A T/F exercise. |
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10-5 |
A shorter T/F exercise. This one is just about definitions. |
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10-6 |
An exercise in calculating activities, activity coefficients, change in chemical potential, and DmixG for a solution (alcohol/chloroform) that is somewhat nonideal. |
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10-11 |
An exercise in calculating the activity and activity coefficients for the water in two sucrose solutions. Note that g for the solvent water is very close to 1 in part (b) even though the solution concentration is quite high. The solvent may act nearly ideally even if the solute does not. |
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10-50 |
Demonstration that DGrxno for reactions involving ions can be calculated from the data available in standard tables. What is needed is DfGo for each of the ions. The standard states for the ions are 1m solutions that have the properties that the solutions would have at infinite dilution (m = 0). For part (a) calculate Ko to convince yourself that DGrxno is correct. |
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10-69 |
A rough calculation to find out the (very approximate) average distance between ions in a 1 M solution. |
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10-70 |
Thought exercise relating mixing quantities (DHmix, etc.) to intermolecular interactions. |
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10-25 |
An exercise in identifying the ions in some simple salts (review of General Chemistry). |
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10-35 |
An exercise in calculating the ionic strength for a solution of several electrolytes containing ions of different charges (1+/1-; 2+/1-; 2+/2-). This is an important problem because of the role of the ionic strength in the activity coefficients of ions. |
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10-37 |
Exercise in using the Davies equation to estimate activity coefficients for ions. Omit part (c) |
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