Chemistry 9701 · AS & A Level · Atoms, molecules and stoichiometry

Atoms, molecules and stoichiometry — practice question

An excess amount of zinc is reacted with $x\,\text{cm}^3$ of $2.00\,\text{mol dm}^{-3}$ hydrochloric acid. The gas formed is dried and then collected. At $101000\,\text{Pa}$ and $293\,\text{K}$, the gas has a volume of $1.534\,\text{dm}^3$. The gas formed follows ideal gas behaviour. Determine the value of $x$.

  • A$31.8\,\text{cm}^3$
  • B$34.7\,\text{cm}^3$
  • C$63.6\,\text{cm}^3$
  • D$69.4\,\text{cm}^3$

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