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

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Question 1
H86%

Chemical amounts are measured in moles. The symbol for the unit mole is mol.

a.

Complete the sentence.

The mass of one mole of a substance in grams is numerically equal to its ................................ .

[1]
b.

Give the value of the Avogadro constant.

[1]
c.

The relative atomic mass (ArA_rAr​) of carbon is 12.

Calculate the mass of 2.0 mol of carbon.

[1]
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

40 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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