Chem 2222. Quantitative Analysis Problems

The problem sets below are all in pdf format and require that you have Adobe Acrobat Reader installed to view them. In general, these problems should be attempted only after you have completed the recommended readings and exercises in the text.

Please print clearly your name, your TA's name, and lab section on the upper right corner of the first page (preferably, a copy of the question sheet). Arrange the solutions in numerical order and staple your sheets in the upper left corner.

The link to the problem set is in the Leftmost Column.

Problem Set
Due Dates
Answer Key
Key Posted
 Notes
In-Class Review* Hand in**
1. Chemical Calculations. W 5/21 F 5/23
PS1 key
5/28  
2. Calculations for Titrimetric Analysis F 5/23 W 5/28
PS2 key
5/29  

3. Errors and Data Treatment

 W 5/28 no
PS3 key
5/29  
4. Ionic Strength and Equilibrium M 6/2 Tu 6/3
PS4 key
 6/4  
5. Simultaneous Equilibria W 6/4 no
PS5 key
6/4  

6. Acid-Base, A

 M 6/9 Tu 6/10
PS6A key
6/11  
Acid-Base, Part B W 6/11 no PS6 key  
7. Complexation. M 6/16 Tu 6/17
PS7 key
6/18  
8. Redox Titrations. W 6/18 no
PS8 key
 6/18  
9. Spectrophotometry M 6/23 Tu 6/24
PS9 key
6/27  
10. Chromatography. See key for corrected data for #3 M 6/30 no
PS10 key
6/27  

*In-Class Review. Clicker session for extra credit. Bring solutions to class.

**Due in class.

NP = not posted

Notes

Data Sources

Your primary source of data (e.g., equilibrium constants) for these problems is your textbook (usually, the appendix). If the necessary data are not in the text, your next source should be CRC Handbook of Chemistry and Physics. A link to the online version of this standard reference, and to other useful data sources, is at the bottom of the Chem 2222 home page. (click on Chemical Information Resources). If connecting from off campus, you may need to install the virtual private network application to access this information. If you are denied access, try going through the UMD Library databases page.

Grading Notes

Problem solutions must include supporting arguments and equations as appropriate. Please print clearly and organize your solutions so that they are legible and understandable by a knowledgeable reader. Print your name and your TA's name on the problem sheet and staple it to the front of your solutions. Solutions should be clearly marked with the problem number and should appear in the order presented on the problem sheet.

Problem sets are 20 points each, generally consisting of 4 to 6 problems. Each problems is worth 3 or 4 points, with any remaining points assigned to clarity and completeness of the work. On a 3-point basis, a typical problem would be assigned points as follows: