Question

calculate the percentage composition of
hydrated calcium chloride , cacla -640​

Answer 1

Explanation:

The chemical formula for Calcium Chloride dihydrate. is: CaCl

2

.2H

2

O

Here, we need to add the total no of masses;

40(Ca)+71(Cl)+2x18(water) = 147

2H

2

O/CaCl

2

.2H

2

O = 36/147 x 100 = 24.49%

So, the mass percent of water in calcium chloride dihydrate salt is 24.49%