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

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Question 6

A pupil pours 0.25 dm3 of sodium chloride solution into an evaporating basin. The pupil heats the basin until all the water has evaporated.

The sodium chloride solution had a concentration of 24 g/dm3.

Assume that all the dissolved sodium chloride is left in the basin as a solid.

Use m=c×Vm = c \times Vm=c×V to calculate the mass of solid sodium chloride left in the evaporating basin.

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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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