The percentage of carbon atom in acetic acid is:

Question

The percentage of carbon atom in acetic acid is: (A) 15% (B) 20% (C) 40% (D) 45%

Tardigrade Admin · Accepted Answer

Acetic acid ( CH 3 COOH ) contains 2 C atoms Molecular mass of CH 3 COOH =12+1 × 3+12+16 × 2+1=60 ∵ 60 g of CH 3 COOH contains 24 g of carbon atom ∴ 100 g of CH 3 COOH contains =(24/60) × 100 =40 %

Q. The percentage of carbon atom in acetic acid is:

15%

20%

40%

45%

Acetic acid $(C H_{3} COO H)$ contains $2 C$ atoms Molecular mass of $C H_{3} COO H$
$= 12 + 1 \times 3 + 12 + 16 \times 2 + 1 = 60$
$∵ 60 g$ of $C H_{3} COO H$ contains $24 g$ of carbon atom
$∴ 100 g$ of $C H_{3} COO H$ contains $= \frac{24}{60} \times 100$
$= 40%$

Q. The percentage of carbon atom in acetic acid is:

15%

20%

40%

45%

Acetic acid (CH3​COOH) contains 2C atoms Molecular mass of CH3​COOH =12+1×3+12+16×2+1=60 ∵60g of CH3​COOH contains 24g of carbon atom ∴100g of CH3​COOH contains =6024​×100 =40%

Acetic acid $(C H_{3} COO H)$ contains $2 C$ atoms Molecular mass of $C H_{3} COO H$
$= 12 + 1 \times 3 + 12 + 16 \times 2 + 1 = 60$
$∵ 60 g$ of $C H_{3} COO H$ contains $24 g$ of carbon atom
$∴ 100 g$ of $C H_{3} COO H$ contains $= \frac{24}{60} \times 100$
$= 40%$