0.24 g of a volatile liquid on vaporization gives 45 mL of vapour at STP. The molecular weight of th — Mole Concept and Some Basic Concepts of Chemistry Chemistry Question

💡 Solution & Explanation

$\text{Moles} = \text{Volume}/22400 = 45 / 22400 \approx 0.002009$ mol. <br>$\text{MW} = \text{Mass}/\text{Moles} = 0.24 / 0.002009 \approx 119.46$.