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

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Question 21
H

Sodium reacts with water.

2Na+2H2O→2NaOH+H22\text{Na} + 2\text{H}_2\text{O} \rightarrow 2\text{NaOH} + \text{H}_22Na+2H2​O→2NaOH+H2​

0.46 g of sodium reacts completely. The relative atomic mass of sodium is 23. The volume of one mole of any gas at room temperature and pressure is 24 dm3.

What is the volume of hydrogen produced at room temperature and pressure?

[1]
A

240 cm3240\ \text{cm}^3240 cm3

B

480 cm3480\ \text{cm}^3480 cm3

C

120 cm3120\ \text{cm}^3120 cm3

D

48 cm348\ \text{cm}^348 cm3

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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