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

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Question 6
H

Hydrogen reacts with oxygen when the mixture is sparked.

2H2+O2→2H2O2\text{H}_2 + \text{O}_2 \rightarrow 2\text{H}_2\text{O}2H2​+O2​→2H2​O

240 cm3 of hydrogen is mixed with 240 cm3 of oxygen and the mixture is sparked. All volumes are measured at the same temperature and pressure.

What is the volume of oxygen left over after the reaction?

[1]
A

60 cm360\ \text{cm}^360 cm3

B

80 cm380\ \text{cm}^380 cm3

C

120 cm3120\ \text{cm}^3120 cm3

D

240 cm3240\ \text{cm}^3240 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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