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3.4 Using concentrations of solutions in mol/dm3

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Question 18

Water is added to a sodium chloride solution until the volume of the solution is four times its original volume. The concentration of the diluted solution is 0.125 mol/dm3. What was the concentration of the sodium chloride solution before the water was added?

[1]
A

0.0313 mol/dm30.0313\ \text{mol/dm}^30.0313 mol/dm3

B

0.375 mol/dm30.375\ \text{mol/dm}^30.375 mol/dm3

C

0.500 mol/dm30.500\ \text{mol/dm}^30.500 mol/dm3

D

0.125 mol/dm30.125\ \text{mol/dm}^30.125 mol/dm3

Markscheme

3.4 Using concentrations of solutions in mol/dm3 Questions

  1. GCSE
  2. /Chemistry
  3. /3.4 Using concentrations of solutions in mol/dm3

106 exam-style questions on AQA GCSE Chemistry 3.4 Using concentrations of solutions in mol/dm3, covering 3.4.1 Concentration in mol/dm3. Each one has a worked solution and a mark scheme showing where the marks go.

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