Question

Define water of crystallisation with example.​

Answer 1

Answer:

its the number of water molecule attached with a compound without reacting with it

Explanation:

if this definition is eligible enough mark as a brainliest

Answer 2

Answer :

Definition :-

• The water molecules which form part of the structure of a crystal of salt are called water of crystallisation.

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Explanation with examples :-

• The salt which contain water of crystallisation is called hydrated salt.

• Every hydrated salt has a fixed number of water molecules in it. Example : copper sulphate - $\rm{CuSO_4.5H_2O}$.

• Copper sulphate contains 5 molecules of water of crystallisation in one formula unit of salt and it is called copper sulphate pentahydrate.

• Water of crystallisation is a part of crystal structure of a salt. The water of crystallisation gives the crystals of salt and in some salt, their colour. For example : $\rm{CuSO_4.5H_2O}$ is in blue colour. $\rm{FeSO_4.7H_2O}$ is green in colour. $\rm{Na_2CO_3.10H_2O}$ & $\rm{CaSO_4.2H_2O}$ are white in colour.