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The normal procedure for obtaining cryst...

The normal procedure for obtaining crystals of many compounds is to use a ___ solution

A

supersaturated

B

Saturated solution

C

unsaturated

D

either (2) or (3)

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The correct Answer is:
1
A supersaturated solution is prepared by cooling a saturated solution very gradually to prevent crystallization. Sodium acetate `(CH_(3)COONa)` is an example of a substance that will form a supersaturated solution. However supersaturated solutions are unstable. Once such a solution has been prepared, adding even a tiny amount of solid `CH_(3)COONa` (called a seed crystal) will caused the excess `CH_(3)COONa` to crystallize out of the solution immediately.
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