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

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Question 2

A tank contains calcium nitrate solution. A technician adds water and stirs until the solution is uniform throughout. The technician then removes some of the solution.

QuantityValue
Initial volume of solution600 cm3
Initial concentration of solution45 g/dm3
Volume of water added300 cm3
Volume of solution removed150 cm3

Assume the volumes add together. No calcium nitrate is lost except in the solution removed.

Calculate the mass of calcium nitrate remaining in the tank.

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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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