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

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Question 19

A carbon-capture trial produces a sample containing 1.505 × 1023 molecules of CO2\text{CO}_2CO2​.

Data itemValue
Relative formula mass of CO2\text{CO}_2CO2​44
Avogadro constant6.02 × 1023 per mole

How many grams of carbon dioxide are in the sample?

[1]
A

44.0 g44.0\ \text{g}44.0 g

B

176 g176\ \text{g}176 g

C

11.0 g11.0\ \text{g}11.0 g

D

0.250 g0.250\ \text{g}0.250 g

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

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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