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

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Question 9
H82%

In a reaction, 0.50 mol of substance A reacts completely with 1.5 mol of substance B.

What is the simplest whole number ratio of moles of A to moles of B?

[1]
A

1:21 : 21:2

B

3:13 : 13:1

C

5:155 : 155:15

D

1:31 : 31:3

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

  1. GCSE
  2. /Chemistry
  3. /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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