Question

what is meant by water of crystallization of a substance ? describe an activity to show the water of crystallization ?​

Answer 1

• In chemistry, water(s) of crystallization or water(s) of hydration are water molecules that are present inside crystals. Water is often incorporated in the formation of crystals from aqueous solutions. ... Water of crystallization can generally be removed by heating a sample but the crystalline properties are often lost.

• Activity to demonstrate water of crystallization : Take a few crystals of hydrated copper sulphate in a dry test tube and heat the test tube. We observe water droplets on the walls of the test tube. ... Water of crystallization is the fixed number of water molecules present in one formula unit of a salt.

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Answer 2

Answer:

In the above activity copper sulphate crystals which seem to be dry contain the water of crystallization and when these crystals are heated the water present in crystals is evaporated and the salt turns white. Water of crystallization is the fixed number of water molecules present in one formula unit of a salt