Question

Calculate % composition of each element in calcium chloride

Answer 1

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Compound:- Calcium Chloride.

Molecular Formula: CaCl₂

Molecular mass:- 40 + 2×35.5 = 111

(Atomic mass of Ca = 40 and Cl = 35.5)

Hence,

In 111g of Calcium chloride, there is 40g of Calcium and 71g of Chlorine.

Percentage Composition of Calcium:

$\frac{40}{111} \times100 = 36.03$

Percentage composition of Chlorine:

$\frac{71}{111}\times100 = 63.96$

Thus,

Percentage Composition of Calcium is 36.03%

Percentage Composition of Chlorine is 63.96%.

Answer 2

Explanation:

Compound:- Calcium Chloride.

Molecular Formula: CaCl₂

Molecular mass:- 40 + 2×35.5 = 111

(Atomic mass of Ca = 40 and Cl = 35.5)

Hence,

In 111g of Calcium chloride, there is 40g of Calcium and 71g of Chlorine.

Percentage Composition of Calcium:

\frac{40}{111} \times100 = 36.03

111

40

×100=36.03

Percentage composition of Chlorine:

\frac{71}{111}\times100 = 63.96

111

71

×100=63.96

Thus,

Percentage Composition of Calcium is 36.03%

Percentage Composition of Chlorine is 63.96%.