Chem 6BL Experiments 4A-C Practical Guide
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EXPERIMENT #4 GUIDE
This guide contains a list of laboratory procedures, laboratory report hints, and some of the
common lab-specific questions often asked by students in this course.
The identity of the
author(s) of any new questions posted will remain anonymous.
However, I reserve the right to
modify any of the questions in order to provide clarity to the reader.
Consult your TA for the various synthesis steps. They can be tricky.
Include scrap of
experiment in your "raw data"- standard pipet volumes, solution and precipitate
H/litmus results, morphology
(i.e. size and
shape) of any crystallites, etc.!
NEED THIS DATA FOR THE RESULTS SECTION OF YOUR
If, after letting your product sit in your drawer (overnight, etc.), you still don't have much
place your product beaker in an
and add more ethanol
Often, this process will
out more product.
If you still fail to get any product, check with your fellow students and your TA - They
may have extra product that they can give to you for use in
Read the worksheet carefully so that you know
which sections you need to write up in your lab notebook and which sections are written
into the worksheet directly.
section, provide some background on the type of synthesis you are
doing - e.g. discuss coordination/complex (inorganic) chemistry, redox reactions, etc.
The "real" results in this experiment include
actual masses used, actual volumes used, recordings of measured
H's and temperatures,
- note the
color, size and
crystals, note colors
of precipitates, etc.)
Don't forget there are two pseudo-% yield calculations
- make sure you include both on
section, simply fill in the boxes with your own values.