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Question
Differentiate between a saturated and an unsaturated solution. How will you test whether a given solution is saturated or not ?
Solution
A saturated solution is one that does not allow dissolution of additional solutes in it at a specific temperature.
An unsaturated solution is one that allows dissolution of additional solutes in it at the same temperature.
If a crystal dissolves in a solution, the solution is said to be unsaturated. This is because an unsaturated solution is capable of dissolving additional solutes into it.
A saturated solution does not dissolve additional solutes or crystals in it. Therefore, the crystal keeps its size when it is put in a saturated solution.
On cooling the solutions, the saturated solution will first form crystals.
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