Calculate the percentage of chlorine present in calcium chloride.

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Solution

As we know,
Percentage of element $= \frac{weight of element}{molecular weight of compound} \times 100 = \frac{2 \times 35.5 \times 100}{111} = 64 %$

(Molecular weight of $C a C l_{2} = 40 + 2 \times 35.5 = 111$ g/mol)

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Calculate the percentage of chlorine present in calcium chloride.

As we know,Percentage of element =weight of elementmolecular weight of compound×100=2×35.5×100111=64%(Molecular weight of CaCl2=40+2×35.5=111 g/mol)

As we know,
Percentage of element $= \frac{weight of element}{molecular weight of compound} \times 100 = \frac{2 \times 35.5 \times 100}{111} = 64 %$

(Molecular weight of $C a C l_{2} = 40 + 2 \times 35.5 = 111$ g/mol)