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3.2 Use of amount of substance in relation to masses of pure substances

3.2 Use of amount of substance in relation to masses of pure substances

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Question 9

An industrial process requires the complete combustion of carbon monoxide gas. An enriched gas mixture containing 15%15\%15% oxygen by volume is used for this process.

Calculate the volume of this gas mixture, in dm3\text{dm}^3dm3, needed to react completely with 13.5 dm313.5\text{ dm}^313.5 dm3 of carbon monoxide gas.

The balanced chemical equation for the reaction is:

2CO(g)+O2(g)→2CO2(g) 2\text{CO(g)} + \text{O}_2\text{(g)} \rightarrow 2\text{CO}_2\text{(g)} 2CO(g)+O2​(g)→2CO2​(g)
[4]
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3.2 Use of amount of substance in relation to masses of pure substances Questions

  1. GCSE
  2. /Chemistry
  3. /3.2 Use of amount of substance in relation to masses of pure substances

38 exam-style questions on AQA GCSE Chemistry 3.2 Use of amount of substance in relation to masses of pure substances, covering 3.2.1 Moles (HT only), 3.2.2 Amounts of substances in equations (HT only), 3.2.3 Using moles to balance equations (HT only), 3.2.4 Limiting reactants (HT only), and 3.2.5 Concentration of solutions. Each one has a worked solution and a mark scheme showing where the marks go.

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