Temporarily under repair, please report problems to Carl.David@att.net

University of Connecticut
Department of Chemistry

Please 'visit' the Chemistry Department Home Page for more information about our Department.
The page shown here was introduced to give students interactive practice with examinations without giving them an answer key. As a reaction to the COVID-19 pandemic, the focus of these pages is changing to reflect Computer Assisted Learning rather than testing. Thus, modules are being added which are instructive rather than examination oriented. These modules will be clearly labeled as CAL, meaning Computer Assisted Learning.

Prelabs


Prelabs can be found at the following locations. Please use the "PeopleSoft ID" of "your name", without the quotes. These items are illustrative of a scheme used to supplant the pre-labs used in older chemistry laboratores, where each week's experiment had a tear out page associated with it, which was filled out by the student and handed in as "proof" that the student had prepared for that week's lab. Instead, the same material was presented on line, and when students completed the weekly assignment, an e-mail was sent to their TA acting as a permission slip for entry into the lab.
  1. Chemistry 127 prelabs
  2. Chemistry 128 prelabs
These prelabs offer a slightly more rigorous approach to multi-step problems, which are exactly equivalent to the printed version in students' printed lab manual. Readers should be aware that students could not submit their results to their TA's until they had finished all the questions properly, unlocking the mechanism for proving that they had done their prelabs. Students were not permitted into the labs until the prelabs were done.
Note added 2018:Of course, there is no method of insuring that the student's name on the submission is the identity of the actual person inputting the answers.

A set of practice problems were also available to students for classroom work:
  1. Chemistry 127 Practice Problems
  2. Chemistry 128 Practice Problems

Finally, a set of on-line quizzes was made available inside carefully timed windows, for students to take. These also can be seen by using the "anyone" ID.
  1. Chemistry 127 Quizzes
  2. Chemistry 128 Quizzes
None of these on-line constructions were adopted by the mainstream course instructors, and were used by me in trailer sections and summer sessions only.
An article on how to program these quizzes is being written, and will be available, absent more health problems, within the year.
I certainly hope that people learn something from these efforts before they disappear from the web during some housecleaning once I'm gone.

Freshman Chemistry, Chem 127-8

This page is devoted to elementary chemistry exminations. It is open to the public.


The following are examples of on-line tests. They mimic the paper exams actually administered.

First Examination, Fall 2000
  1. Part 1 (multiple choice)
  2. Part 2 (Problems)
  • Second Examination, Fall 2000
    1. Part 1 (multiple choice)
    2. Part 2 (Problems)
  • Third Examination, Fall 2000
    1. Part 1 (multiple choice)
    2. Part 2 (Miscellaneous)
    3. Part 2 (Problems)
  • Final Examination, Fall 2000
    1. Part 1 (multiple choice)
    2. Part 2 (Miscellaneous)
    3. Part 2 (Problems)

    Chemistry 128

    Here is a discussion of the relation between solution thermodynamics and the Henry's Law Constant on the one hand, and Ksp on the other hand. Click Here Please
    If you are interested in how these examinations have been constructed, please visit this site for an introduction to CGI programming using Perl in the context of computer assisted testing.
    Carl W. David
    Department of Chemistry
    University of Connecticut
    Storrs, Connecticut 06269-4060
    (860)486-3217
    Carl.David@uconn.edu
    August, 2020: index.html