A crystalline salt on being rendered anhydrous loses 45.6% of its weight. The composition of anhydrous salt is: Al= 10.5%, K= 15.1 % , S=24.8 % and 0=49.6% Calculate the formula of anhydrous salt and crystalline salt.

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Q. A crystalline hydrated salt on being rendered anhydrous, loses 45.6% of its weight. The percentage composition of anhydrous salt is : Al = 10.5%, K = 15.1%, S = 24.8% and I = 49.6%. Find the empirical formula of the salt.

Q. A crystalline hydrated salt on being rendered anhydrous loses 45.6% of its weight.
The percentage composition of the anhydrous salt is:

A l = 10.5 %, K = 15.1 %, S = 24.8 %

and oxygen

= 49.6 %

[Molar mass of

A l = 27, K = 39, S = 32

].

What is the empirical formula of the salt?

5g of crystalline salt rendered anhydrous; lost 1.8g of water. The formula weight of the anhydrous salts is 160. The number of water molecules of crystallization is:

5

g of crystalline salt, when rendered anhydrous, lost

1.89

g of water. The formula weight of anhydrous salts is

160

. The number of molecules of water of crystallisation in the salt is:

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