On complete combustion, 0.246 g of an organic compound gave 0.198 g of carbon dioxide and 0.101 g of water. Determine the percentage composition of carbon and hydrogen in the compound:

Question

On complete combustion, 0.246 g of an organic compound gave 0.198 g of carbon dioxide and 0.101 g of water. Determine the percentage composition of carbon and hydrogen in the compound: (A) 8.9 %(H) 4.58 % (C) (B) 6.8 % (C) 4.58 % (H) (C) 4.58 % (H) 21.95 % (C) (D) 3.2 %(H) 21.95 % (C)

Tardigrade Admin · Accepted Answer

% of carbon =(12 × 0.198 × 100/44 × 0.246)=21.95 % % of hydrogen =(2 × 0.1014 × 100/18 × 0.246)=4.58 %

Q. On complete combustion, $0.246 g$ of an organic compound gave $0.198 g$ of carbon dioxide and $0.101 g$ of water. Determine the percentage composition of carbon and hydrogen in the compound:

$8.9%$ (H) $4.58%$ (C)

$6.8%$ (C) $4.58%$ (H)

$4.58%$ (H) $21.95%$ (C)

$3.2%$ (H) $21.95%$ (C)

$%$ of carbon $= \frac{12 \times 0.198 \times 100}{44 \times 0.246} = 21.95%$

$%$ of hydrogen $= \frac{2 \times 0.1014 \times 100}{18 \times 0.246} = 4.58%$

Q. On complete combustion, 0.246g of an organic compound gave 0.198g of carbon dioxide and 0.101g of water. Determine the percentage composition of carbon and hydrogen in the compound:

8.9%(H) 4.58% (C)

6.8% (C) 4.58% (H)

4.58% (H) 21.95% (C)

3.2%(H) 21.95% (C)