A-LevelChemistryAtoms, molecules and stoichiometry9701/12 · May/June 2010 · Q71 Mark

Which mass of gas would occupy a volume of 3 dm³ at 25 °C and 1 atmosphere pressure? [1 mol of gas occupies 24 dm³ at 25 °C and 1 atmosphere pressure.]

A3.2 g O2 gas

B5.6 g N2 gas

C8.0 g SO2 gas

D11.0 g CO2 gas

✓ Correct answer

C: 8.0 g SO2 gas

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Topic: Atoms, molecules and stoichiometry, A-Level Chemistry (syllabus 9701). Multiple choice, 1 mark.
Source: A-Level Chemistry, May/June 2010 Paper 1 Variant 2, question 7.

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