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

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Question 31

An empty sample bottle is placed on a balance and the balance is set to zero. A technician needs to add 0.30 mol of sodium hydroxide to the bottle. The relative formula mass (MrM_rMr​) of sodium hydroxide is 40.

Calculate the balance reading, in grams, when the correct amount of sodium hydroxide has been 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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