Question

Name any 2 salts that are white and have water of crystalization with their chemical name and formula ??and What is water of crustalization

Answer 1

Water of crystallization is the fixed number of water molecules present in one formula unit of a salt. When we heat copper sulphate in china dish, the blue coloured crystals changes into a white powder due to the removal of 5 molecules of water of crystallization.

Answer 2

Water of crystallization is the fixed number of water molecules chemically attached to one formula unit of a salt.

Water of crystallization gives the salt a cystalline look . It also sometimes imparts colours to hydrated salt.

It can be removed by heating the salt. In such case salt becomes anhydrous.

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The two hydrated salts that are white are:-

Magnesium sulphate (MgSO4.7H2O)

Sodium hydrogen carbonate (NaHCO3.10H2O)