The empirical formula of a compound is . of this compound has a mass of 2.8 g. Its molecular formula — Mole Concept and Some Basic Concepts of Chemistry Chemistry Question

💡 Solution & Explanation

$\text{Molar mass} = 2.8 / 0.1 = 28 \text{ g/mol}$. $\text{Empirical mass } (CH_2) = 14 \text{ g/mol}$. $n = 28/14 = 2$. Molecular formula $= (CH_2)_2 = C_2H_4$.