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Chemistry · Some Basic Concepts of Chemistry

हिन्दी

Continuing from the previous problem, if the empirical formula mass of \( \text{CH}_2\text{Cl} \) is 49.48 g and the molar mass is 98.96 g, what is the molecular formula of the compound?

  1. \( \text{C}_3\text{H}_6\text{Cl}_3 \)
  2. \( \text{CH}_2\text{Cl} \)
  3. \( \text{C}_2\text{H}_4\text{Cl}_2 \)
  4. \( \text{C}_2\text{H}_2\text{Cl}_4 \)

Correct answer · Option 3

\( \text{C}_2\text{H}_4\text{Cl}_2 \)

Explanation

n = \( \frac{\text{Molar mass}}{\text{Empirical formula mass}} = \frac{98.96}{49.48} = 2 \). Molecular formula = \( (\text{CH}_2\text{Cl})_2 = \text{C}_2\text{H}_4\text{Cl}_2 \).
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