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

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Question 23

Carbon monoxide burns in oxygen to form carbon dioxide:

$2CO+O2→2CO22\text{CO} + \text{O}_2 \rightarrow 2\text{CO}_2$

A mixture of 70 cm³ of carbon monoxide and 50 cm³ of oxygen is ignited, and all of the carbon monoxide reacts. The gases are at the same temperature and pressure before and after the reaction.

Calculate the volume of oxygen left unreacted.

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Markscheme

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

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

100 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.

Question bank·3.5 Use of amount of substance in relation to volumes of gases