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

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Question 53

A laboratory has 250 cm3 of a urea solution with a concentration of 28 g/dm3.

Water is removed until the volume of the solution is 175 cm3.

No urea is lost.

Calculate the concentration of the urea solution after the water is removed.

Give your answer in g/dm3\text{g/dm}^3g/dm3.

[2]
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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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