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(B) The mass percentage of an element in a compound is calculated as: $	ext{Mass } \% = \frac{	ext{Total mass of the element}}{	ext{Molar mass of t

Vedclass · Accepted Answer

$7.84$ and $92.80$

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(B) The mass percentage of an element in a compound is calculated as: $	ext{Mass } \% = \frac{	ext{Total mass of the element}}{	ext{Molar mass of the compound}} 	imes 100$. In $CCl_4$,the molar mass is $12.01 + 4 	imes 35.45 = 153.81 \approx 154 \ g/mol$. Mass percentage of $C = \frac{12.01}{153.81} 	imes 100 \approx 7.81 \%$. Mass percentage of $Cl = \frac{4 	imes 35.45}{153.81} 	imes 100 \approx 92.19 \%$. Given the options provided,the closest values are $7.84$ and $92.80$.

In each molecule of carbon tetrachloride,the mass percent of carbon and chlorine respectively are

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