Chemistry 0620 · IGCSE · The mole and the Avogadro constant

The mole and the Avogadro constant — practice question

The combustion equation for ethane is given below. $2\text{C}_2\text{H}_6 + 7\text{O}_2 \rightarrow 4\text{CO}_2 + 6\text{H}_2\text{O}$. What volume of carbon dioxide, at room temperature and pressure, is produced when $0.5$ moles of ethane are burned?

  • A$48\,\text{dm}^3$
  • B$24\,\text{dm}^3$
  • C$12\,\text{dm}^3$
  • D$6\,\text{dm}^3$

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