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CHEM 121 Lab

There is a host of information available at chemlab.truman.edu. In particular, you should bookmark the Chemical Principles section, which contains the lab manual for the course. We will utilize this website often!

Wondering how to complete the "Discussion" section of your lab notebook? check out the following links.

The "Discussion and Conclusions" portion of the ChemLab Lab Notebook site.
"Have I written a good Discussion and Conclusions Section", prepared by Dr. Lamp

General Lab Information

Lab Notebook Comments

Lab Schedule

Looking for values of t and Q for statistical treatment of data? Check the Introduction to Statistics portion of the chemlab site. (you need to scroll down to find the t and Q tables)

General Lab Information

As seen on the schedule below, lab write-ups are due a relatively short time after lab is completed. This means that you should tie up any calculations, conclusions and discussions quickly. It is best to tie them up in a time frame close to that of class time, as the tendency to forget makes it more difficult with time.

All labs will be collected, though only 5 will be graded. These will be worth 25 points each.

Those labs which are not graded may be reviewed and some comments given.

Those labs that are graded may have different point worth assigned for different sections; however, your Data and Results sections will generally carry the greatest point worth.

Lab Notebook Comments:

I expect that you will read and follow the guidelines outlined in "The Laboratory Notebook" section of your lab manual. Please be sure to keep the following items in mind as you complete your notebooks.

Very clearly label each of the individual sections in the notebook. There should be only one procedural section including all subsections grouped together. There should only be one data section, etc...

Write all information into your notebooks directly using permanent ink, making sure that a duplicate copy is made. Do not transfer information into the book from pieces of paper towel or the margins of your lab manual.

Do not erase any information or use white-out. Instead, if you make an error, correct it by drawing a single bold line through the error and initial it. A comment on why the correction was made often helps you remember

Clearly label all entries in the notebook. Be certain to include units with all numbers and measurements. Also be aware that every graph and table needs to be titled and any graph axes must be appropriately labeled.

Affix all graphs and loose pages that are generated in the laboratory or by using spreadsheets directly into the results section.

If a calculation is made to arrive at an answer, show one example of each calculation in a clearly labeled fashion.

Sign and Date each page when completed.

All sections are to be written in your own words.

Lab Schedule

Date	Experiment	Due date
1/12	First week of class, no labs. Lab contracts, safety quizzes and health forms due by noon Friday, January 12 Prepare flow chart for chloride group as described in the Qualitative Analysis exercise.	--
1/19	Qualitative Analysis (Week 1): Analysis of Cations. Check-in.	1/26^*
1/26	Qualitative Analysis (Week 2): Analysis of Anions.	2/2^*
2/2	Qualitative Analysis (Week 3): Analysis of Unknowns.	2/9
2/9	Molecular Modeling 1: Classic Molecular Modeling	2/16
2/16	No laboratory due to University Conference on February 19.
2/23	Electronegativity by NMR.	3/2
3/2	Synthesis and Characterization of Coordination Compounds (Week 1): Synthesis of Coordination Compounds	3/16^*
3/9	No laboratory due to Midterm Break.
3/16	Synthesis and Characterization of Coordination Compounds (Week 2): Synthesis of Characterization of the Compounds	3/23
3/23	.Molecular Modeling 2: Computational Chemistry.	3/30
3/30	Environmental Chemistry (introduction and planning).
4/6	No laboratory because of Spring Break on April 13.
4/13	Environmental Chemistry (planning).
4/20	Environmental Chemistry	4/27
4/27	Environmental Chemistry presentations. Check-out.

^*Formal conclusions sections are not required at these due dates. You only need to turn in pages with the Statement of Purpose, Procedure, and results (including balanced chemical equations for all reactions).