The vapour density of a highly volatile organic substance is determined to be exactly with respect t — Mole Concept and Some Basic Concepts of Chemistry Chemistry Question

💡 Solution & Explanation

Vapour density relative to a specific gas is defined as the ratio of their molar masses. $V.D._{\text{relative}} = \frac{M_{\text{substance}}}{M_{\text{reference}}}$. Here, the reference gas is $CH_4$ ($M = 16\text{ g/mol}$). Thus, $6 = \frac{M_{\text{substance}}}{16} \implies M_{\text{substance}} = 6 \times 16 = 96\text{ g/mol}$.