Chemistry path · GCSE Chemistry

Can atmospheric fractions predict a museum air sample?

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Practice question

A museum conservation unit takes a 2.4 dm³ sample of present-day air. It removes 24 cm³ of gases other than nitrogen and oxygen. The remaining nitrogen and oxygen are in a 4:1 volume ratio. Using 1 dm³ = 1000 cm³, explain the expected volume of each gas in cm³.

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Official curriculum

4.9.1.1 The proportions of different gases in the atmosphere

This challenge practises knowledge and exam skills from the official GCSE science curriculum. Use these sources to see the exact subject content and its wider Key Stage 4 context.

AQA specification 4.9.1.1 The proportions of different gases in the atmosphere GOV.UK Key Stage 4 science programme

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