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Chemistry · Oct / Nov 2021 · Paper 12 · Question 13

5070The mole and the Avogadro constant

Sodium carbonate reacts with dilute hydrochloric acid. Na2CO3 + 2HCl → 2NaCl + H2O + CO2 A sample containing 0.0800 mol of sodium carbonate is added to a solution containing 0.100 mol of hydrochloric acid. Which volume of carbon dioxide is produced, measured at room temperature and pressure?

  1. A0.96 dm3
  2. B1.20 dm3
  3. C1.92 dm3
  4. D2.40 dm3

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Correct answer: B. 1.20 dm3

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