The Sequence of Chemical Reactions
Drew Selfridge
Dave Allen, Lab partner
Instructor
Yang February 11, 1997
INTRODUCTION This experiment was to recover the most amount of copper after it
is subjected to a sequence of reactions. The copper is originally in solid
form, but the reactions will turn it into free Cu+2 ions floating in solution.
The ions will then be regrouped to form solid copper once again. During this
process, however, some of the Cu+2 ions may be lost. The copper will subjected
to changes in pH and heat. These steps were responsible for the breakdown and
reconstruction of the copper. The percent of copper retrieved will reflect the
skill with which the reactions were administered.
EXPERIMENTAL On an analytical balance, measure the mass of the copper while in
the vial. Remove approximately 0.35 g into a 250 mL beaker. check the balance
and record the mass of the remaining mixture in the vial. In the laboratory
hood, dissolve the copper with ~ 3 mL of......
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