Question

An organic compound gave $0.4655 \,g$ of $CO_{2}$ on complete combustion. If the mass o f the compound taken was $0.2115\, g$, what is the percentage of $C$ in it ?

• A. $13.30\%$
• B. $26.67\%$
• C. $60.03\%$
• D. $28.80 \%$

Answer 1

Answer: (C)

Mass of $CO_{2}$ formed = $0.4655 \,g$
Mass of organic compound taken = $ 0.2115\, g$
% of $C=\frac{12}{44} \times \frac{mass\, of \,CO_{2}}{mass\, of\, compound} \times 100$
$=\frac{12}{44} \times \frac{0.4655}{0.2115}\times=60.03\%$