The goal of the recrystallization procedure is to obtain purified material with a maximized recovery. For each
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Question:
The goal of the recrystallization procedure is to obtain purified material with a maximized recovery. For each of the items listed, explain why this goal would be adversely affected.
a. In the solution step, an unnecessarily large volume of solvent is used.
b. The crystals obtained after filtration are not washed with fresh cold solvent before drying.
c. The crystals referred to in (b) are washed with fresh hot solvent.
d. A large quantity of decolorizing carbon is used.
e. Crystals are obtained by breaking up the solidified mass of oil that originally separated from the hot solution.
f. Crystallization is accelerated by immediately placing the flask of hot solution in an ice-water bath.
Expert Answer:
a If an unnecessarily large volume of solvent is used during recrystallisation the solution will not ... View the full answer
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