Report

Header: The top of your report should contain the title of this experiment, your name, your lab day, your box #.

Body: The body of the report consists of your lab partner's name, a data table and answers to the questions listed below.

The report should be turned in as a separate document from the lab notebook, but both items will be turned in (and a smaller version of the data table should also appear in your notebook).

Group work: It is natural to discuss your ideas with other students, but you must state your answers in your own words. If you decide to have a group discussion, I strongly recommend leaving the group and going off by yourself to actually write the report. If I see the same phrases appearing in different lab reports, I will have to assume that plagiarism has occurred. This standard applies to all Chem 201/202 lab reports.

Due: 5 pm, two days after you and your partner finish the lab. Place your lab notebook in Alan's mailbox outside Rm. 303 (department office). Do not put your notebook in the plastic box next to Alan's office - it will snap off like a toothpick.

Data table

Construct a table with the following column headings (units are in parentheses, explanatory comments are in italics; do not put my comments in your table):

• Alcohol - name
• solubility (either "completely soluble" or wt%)
• bp - boiling point
• dipole moment (debye)
• extreme negative potential (kJ/mol)
• extreme positive potential (kJ/mol)
• Area (A²)
• Polar Surface Area (A²)
• %Polar Surface(%)

Enter your data in the table using one row for each alcohol. Do not enter data for water. Also, notice that this table includes two items (solubility, bp) that are not part of your notebook's data table.

Questions

1. How would you explain the rule-of-thumb that "like dissolves like" to a Chem 102 student? Your answer should refer to data/observations that you have made and it should support this rule.

2. Which of the compounds that you studied in this experiment displayed behavior that could be taken as an exception to "like dissolves like"? Describe the behavior that was observed and explain why you feel that this compound violates our rule-of-thumb.