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

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

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Question 7

A concentrated liquid fertilizer used in hydroponics contains potassium nitrate.

400 cm3400\text{ cm}^3400 cm3 of this fertilizer solution contains 14.8 g14.8\text{ g}14.8 g of potassium nitrate.

Calculate the mass of potassium nitrate in 2.5 dm32.5\text{ dm}^32.5 dm3 of the fertilizer solution.

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Markscheme

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

38 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 (HT only), 3.2.2 Amounts of substances in equations (HT only), 3.2.3 Using moles to balance equations (HT only), 3.2.4 Limiting reactants (HT only), and 3.2.5 Concentration of solutions. Each one has a worked solution and a mark scheme showing where the marks go.

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