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3.5 Use of amount of substance in relation to volumes of gases

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Question 1
H

A sealed container holds 100 cm3 of oxygen, O2\text{O}_2O2​. A second sealed container of the same size holds 100 cm3 of sulfur dioxide, SO2\text{SO}_2SO2​. Both containers are at the same temperature and pressure.

The mass of the sulfur dioxide is greater than the mass of the oxygen.

The relative formula mass of oxygen is 32 and the relative formula mass of sulfur dioxide is 64.

a.

Explain why the two containers hold the same number of molecules.

[2]
b.

Explain why the mass of the sulfur dioxide is greater than the mass of the oxygen.

[2]
Markscheme

3.5 Use of amount of substance in relation to volumes of gases Questions

  1. GCSE
  2. /Chemistry
  3. /3.5 Use of amount of substance in relation to volumes of gases

40 exam-style questions on AQA GCSE Chemistry 3.5 Use of amount of substance in relation to volumes of gases, covering 3.5.1 Volumes of gases. Each one has a worked solution and a mark scheme showing where the marks go.

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