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Question bank·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

A technician needs 5.0 g of potassium hydroxide for an experiment. The stock solution of potassium hydroxide in the laboratory has a concentration of 20 g/dm³.

Which volume of the stock solution should the technician measure out?

[1]

A

$dm34.0\ \text{dm}^3$

B

$dm3100\ \text{dm}^3$

C

$dm3250\ \text{dm}^3$

D

$dm30.25\ \text{dm}^3$

Markscheme

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

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

131 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, 3.2.2 Amounts of substances in equations, 3.2.3 Using moles to balance equations, 3.2.4 Limiting reactants, 3.2.5a Concentration of solutions, and 3.2.5b Relating mass, volume and concentration. Each one has a worked solution and a mark scheme showing where the marks go.

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