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

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Question 56

A technician has an evenly mixed sodium thiosulfate solution.

MeasurementValue
Initial concentration of solution35 g/dm3
Initial volume of solution600 cm3
Volume of solution removed150 cm3
Volume after water is added750 cm3

Calculate the concentration of the sodium thiosulfate solution after the water is added.

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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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