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How I will know that how much molecule of water is present in a salt in ( water of crystalization )

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Solution

The no. of molecules in the chemical formula of the hydrated salt, represents the water of crystallisation.
The number of molecules of water appearing in the formula of form .H₂O

For eg :
CuSO₄.5H₂O
Five molecules of water of crystallisation

CoCl₂.6H₂O
6 molecules of water of crystallisation

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Q. How many water molecules are present in one molecule of Epsom salt?

Q. Epsom salt has _______ molecules of water of crystallization.

Q. Water of crystallization is the fixed number of water molecules chemically attached to a unit of a salt in its crystalline form.

Q. Copper sulphate crystals which seem to be dry contain water of crystallization. When we heat the crystals, this water is removed and the salt turns white. If you moisten the crystals again with water, you will find that blue colour of the crystals reappears.

The water of crystallization is the fixed number of water molecules present in one formula unit of a salt. Five water molecules are present in one formula unit of copper sulphate. The chemical formula for hydrated copper sulphate is

C u {S O}_{4}

5 H_{2} O

. Now you would be able to answer the question whether the molecule of

{N a}_{2} {C O}_{3}

10 H_{2} O

is wet. One other salt, which possesses water of crystallization is gypsum. It has two water molecules as a water of crystallization. It has the formula

C a {S O}_{4}

2 H_{2} O

What are the uses of this salt?

Q. How many water of crystallization is (are) present in the ore carnallite ?

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