The vapour density of a gas is 32. The volume occupied by of the gas at STP is: | Mole Concept and Some Basic Concepts of Chemistry — Chem-Mantra

Question

The vapour density of a gas is 32. The volume occupied by $8\text{ g}$ of the gas at STP is:

Answer: A

💡 Solution & Explanation

$MW = 2 \times 32 = 64\text{ g/mol}$. <br>$\text{Moles} = 8 / 64 = 0.125\text{ mol}$. <br>$\text{Volume} = 0.125 \times 22.4 = 2.8\text{ L}$.

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