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Stoichiometry Vapour Density and Molar Mass

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At STP, 5.6 L of a gas weighs 8 g. Its vapour density relative to H₂ is:

Verified Answer & Explanation⌄

Correct Answer: B) 16

Concept Explanation

5.6 L at STP = 0.25 mol. Molar mass = 8/0.25 = 32 g mol⁻¹. Vapour density = 32/2 = 16.

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