An organic compound gave 0.4655 g of CO2 on complete combustion. If the mass o f the compound taken was 0.2115 g, what is the percentage of C in it ?

Question

An organic compound gave 0.4655 g of CO2 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 %

Tardigrade Admin · Accepted Answer

Mass of CO2 formed = 0.4655 g Mass of organic compound taken = 0.2115 g % of C=(12/44) × (mass of CO2/mass of compound) × 100 =(12/44) × (0.4655/0.2115)×=60.03 %

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

$13.30%$

$26.67%$

$60.03%$

$28.80%$

Mass of $C O_{2}$ formed = $0.4655 g$
Mass of organic compound taken = $0.2115 g$
% of $C = \frac{12}{44} \times \frac{ma ss o f C O _{2}}{ma ss o f co m p o u n d} \times 100$
$= \frac{12}{44} \times \frac{0.4655}{0.2115} \times = 60.03%$

Q. An organic compound gave 0.4655g of CO2​ on complete combustion. If the mass o f the compound taken was 0.2115g, what is the percentage of C in it ?

13.30%

26.67%

60.03%

28.80%