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Analytical Chemistry | @CSU Stanislaus |
Listed below are the homework problems for the topics covered in the lectures. Those problems in parentheses are recommended but are not turned in for grading. The other problems will be submitted for grading. To earn the maximum score for a problem, the answer must be correct, with the correct units and the correct number of significant figures. The problems must be done using Mathcad. Assignments submitted in any other format will not be accepted. Each of the problems assigned from the text are worth 10 points and the Additional Mathcad Problems are worth 20 points. No assignments will be accepted for grading after the due date. The due dates will be assigned in class. To be successful on the exams, you will need to be able to do these homework problems.
| Topic | Chapter | Required | Recommended |
| Errors in Chemical Analysis | 2 | 8, 9 | 1, 3-7 |
| Random Errors in Analysis | 3 | 7b,d,f, 9d, 10a,b, 14 | 1- 4, 8, 13 |
| Application of Statistics to Data Treatment and Evaluation | 4 | 5, 7, 14, 21 | 9. 10, 11. 13. 15, 18 |
| Gravimetric Methods of Analysis | 5 | 20, 25, 40 (use solve block) | 1, 4, 13, 15, 22, 24, 27, 30, 34 |
| Titrimetric Methods of Analysis | 6 | 11, 20, 29 | 3, 17, 22 |
| Aqueous Solution Chemistry | 7 | 13, 21b,d,f | 1, 4, 7, 8 |
| Effect of Electrolytes on Ionic Equilibria | 8 | 8b,d, 13b,d | 8a,c, 11, 13a,c |
| Application of Equilibrium Calculations to Complex Systems | 9 | 7b,d, 10, 13 | 5, 6, 16 |
| Theory of Neutralization Titrations | 10 | 27, 31, 35, 41b,d,f, 44, 52b,d | 2, 8, 10, 41, 50, 53 |
| Titration Curves for Complex Acid/Base Systems | 11 | 9b, 10b, 11b, 15a, 19, 28b,d | 8, 14, 25, 33, 34 |
| Precipitation Titrimetry | 13 | 14, 27, 29b,d | 7, 13, 23, 28 |
| Complex-Formation Titrations | 14 | 9, 13, 17, 28 | 1, 4b, 6, 8, 10, 16, 25 |
| An Introduction to Electrochemistry | 15 | 14, 17, 21, 23 | 1, 3, 7, 10, 13, 30 |
| Applications of Standard Electrode Potentials | 16 | 7, 11b,d, 14b,d | 8, 9 |
| Chapter | Problem |
| 8 | Barium hydroxide is slightly soluble and dissolved ions derived from the Ba(OH)2 increase the ionic strength. This, in turn, increases the calculated solubility compared to that obtained by ignoring activities. Use Mathcad to calculate the solubility of Ba(OH)2 using activities. Compare your result to the solubility calculated if the effect of ionic strength is ignored. |
| 9 | Calculate and plot the concentrations of all species in a solution which is in equilibrium with solid silver(I) carbonate buffered at different pH values. |
| 11 | Calculate and plot the titration curve and corresponding alpha-plots for the titration of 20.00 mL of 0.100 M H3PO4 with 0.200M NaOH solution. |
| 14 | Illustrate the importance of the value of Kf on the titration of metals with EDTA. Calculate the titration curves for the titration of 10.0 mL of 0.0050 M solutions of Ca2+, Sr2+, Ni2+ and Hg2+ with 0.0100 M EDTA at pH 6.00. Plot the pM vs. volume of EDTA. |
| 16 | Use the master equation to calculate and plot the titration curve for the titration of 10.00 mL of 0.0200 M Fe2+ with 0.0100 M Ce4+. Plot the volume of the Ce4+ solution vs. the cell potential. Show that the second derivative has a value of zero at the equivalence point. |
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