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

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Question 59

A student prepares a solution of a soluble solid. The student takes 350 cm3 of a solution with a concentration of 20 g/dm3. The student adds water until the total volume is 800 cm3.

a.

Calculate the mass of solute in the 350 cm3 of solution.

[1]
b.

Calculate the concentration of the new solution.

[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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