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

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Question 28

Calcium carbonate decomposes completely when it is heated strongly.

$CaCO3→CaO+CO2\text{CaCO}_3 \rightarrow \text{CaO} + \text{CO}_2$

25 g of calcium carbonate is heated until it fully decomposes. The relative formula mass of calcium carbonate is 100. The volume of one mole of any gas at room temperature and pressure is 24 dm³.

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

[1]

$dm32.4\ \text{dm}^3$

$dm36.0\ \text{dm}^3$

$dm324\ \text{dm}^3$

$dm3600\ \text{dm}^3$

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