Organizing your experiment
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There are three charts at the end of this experiment. These are
labeled reactions, observations, and unknowns. They'll help you
keep track of everything throughout the lab. They're nothing fancy.
You will make similar ones yourself.
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Remove the three charts from the end of this experiment.
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Place the reactions chart between stiff paper and a transparency
sheet. The stiff paper provides a flat surface, and the transparency
is a good reaction surface. Once you have this set up, you may want
to tape down the edges to keep it all in place. Set the other two
charts aside for now.
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Click here for full-size .pdf
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Get out two well trays. One will be for the reagents and the other
for your microburettes. Place a sheet of paper underneath each well
tray.
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Label one sheet so that you can keep track of what reagent you
put in each well. How you do this is up to you-just make sure it's
straightforward enough that you won't be confused later. Then fill
each well with some reagent, according to your chart. Your TA will
tell you where to get these compounds.
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Label the paper under the other tray the same way. To avoid contamination
during the experiment, you'll have one microburette for each reagent,
and you can keep them all in the second well tray. Store the microburette
in the well labeled with the reagent you will use with it. This
should avoid contamination and allow you to find what you need quickly,
but it's a good idea to label the individual microburettes as well.
You'll likely have to redo a large portion of your lab if you lose
track of what's what, and at some point during the experiment, you
will undoubtedly find two or three microburettes laying out on your
bench that you've forgotten to put away.
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