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

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Question 29

Hydrogen chloride, HCl\text{HCl}HCl, and sulfur hexafluoride, SF6\text{SF}_6SF6​, are gases at room temperature and pressure. Their relative formula masses are 36.5 and 146, respectively.

A flexible gas bag contains 7.30 g of hydrogen chloride. A technician fills a second flexible bag with sulfur hexafluoride. Both bags are kept at the same temperature and pressure.

Which mass of sulfur hexafluoride gives the second bag the same volume as the first bag?

[1]
A

1.83 g1.83\ \text{g}1.83 g

B

29.2 g29.2\ \text{g}29.2 g

C

146 g146\ \text{g}146 g

D

7.30 g7.30\ \text{g}7.30 g

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

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.

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