A-LevelChemistryAtoms, molecules and stoichiometry9701/12 · Oct/Nov 2012 · Q61 Mark

Use of the Data Booklet is relevant to this question. The volume of a sample of ammonia is measured at a temperature of 60°C and a pressure of 103 kPa. The volume measured is 5.37 × 10-³ m³. What is the mass of the sample of ammonia, given to two significant figures?

A0.00019 g

B0.0034 g

C0.19 g

D3.4 g

✓ Correct answer

D: 3.4 g

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Topic: Atoms, molecules and stoichiometry, A-Level Chemistry (syllabus 9701). Multiple choice, 1 mark.
Source: A-Level Chemistry, Oct/Nov 2012 Paper 1 Variant 2, question 6.

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