ORGANIC CHEMISTRY
CHEM 12A
LANEY COLLEGE
INSTRUCTOR: S. CORLETT
Solubility
Reading
Experiment 2 in Pavia (Parts A, B, C, and D). See the Required Reading for the experiment, i.e.,
read through Techniques 5 and especially Technique10 in Pavia before class).
General
Understanding the solubility characteristics of organic solids and liquids is vital to gaining experience in
handling and purifying organic compounds in the chemistry laboratory. Also vital is learning the appropriate
terms applied to the observation of mixing different materials: soluble vs. insoluble, miscible vs. immiscible.
This experiment explores the solubility behavior of a selection of different organic compounds, liquids and
solids, each with a different type of functional group.
Prelab
Include your Name, the Date, a Title for the experiment (e.g., Solubility), a Purpose, and a brief Outline of the
essential procedure for each part. Include tables in your notebook to enter your observations about the
experiment (for Parts A, B, C, and D). These must be in your notebook before you can start the experiment.
Note: instead of ethyl 4-aminobenzoate in Part D, we will be using 4’-aminoacetophenone.
Procedure
Work in pairs (no more than two students). Follow the procedures for Parts A through D in the text. Note your
observations as you proceed with each part directly into your notebook. (Note the substitution for Part D noted
above.)
To Complete the Experiment – Partial Report
Once you have completed all parts of the experiment, your tables should be completely filled in. For your
conclusion, summarize the results from each part using words. Answer the questions which start on p. 18 under
REPORT, Parts A-D (your results should already be in the tables from your prelab, so you do not need to repeat
the tables), and answer Question 1 in the following section (starts on p. 19).
Version 20150915