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Chemistry · Some Basic Concepts of Chemistry
हिन्दीWhat is the mass percentage of carbon in ethanol (\( \text{C}_2\text{H}_5\text{OH} \))? (Atomic masses: C = 12.01 u, H = 1.008 u, O = 16.00 u)
Correct answer · Option 4
52.14%
Explanation
Molar mass of \( \text{C}_2\text{H}_5\text{OH} = 46.068 \text{ g} \). Mass % of C = \( \frac{24.02}{46.068} \times 100 = 52.14\% \).
