Chemistry 0620 · IGCSE · The mole and the Avogadro constant

The mole and the Avogadro constant — practice question

A student combined $25.0\,\text{cm}^3$ of $1.00\,\text{mol dm}^{-3}$ hydrochloric acid with $25.0\,\text{g}$ of calcium carbonate. $\text{2HCl(aq)} + \text{CaCO}_3(s) \rightarrow \text{CaCl}_2(aq) + \text{H}_2\text{O}(l) + \text{CO}_2(g)$ What maximum volume of carbon dioxide gas can be obtained at room temperature and pressure?

  • A$300\,\text{dm}^3$
  • B$6.00\,\text{dm}^3$
  • C$0.600\,\text{dm}^3$
  • D$0.300\,\text{dm}^3$

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