Mass % of carbon in ethanol is

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Question: Answered & Verified by Expert

Mass % of carbon in ethanol is

ChemistrySome Basic Concepts of ChemistryNEET

Options:

A 52
B 13
C 34
D 90

Solution:

2256 Upvotes Verified Answer

The correct answer is: 52

Ethanol is

C_{2} H_{5} O H

Molecular mass

= 12 \times 2 + 6 \times 1 + 16 \times 1

= 24 + 6 + 16 = 46

Mass of carbon in ethanol

= 12 \times 2 = 24

Mass % of carbon = \frac{Mass of carbon}{Molar mass of compound} × 100

= \frac{24}{46} \times 100 = 52 %

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