Chemistry 5070 · O Level · The mole and the Avogadro constant

The mole and the Avogadro constant — practice question

Hydrogen sulfide is burned in an excess of oxygen, as represented by the equation below. $2\text{H}_2\text{S}(g) + 3\text{O}_2(g) \rightarrow 2\text{H}_2\text{O}(g) + 2\text{SO}_2(g)$ $48\,\text{dm}^3$ of hydrogen sulfide is burned. What volume of sulfur dioxide will be produced at room temperature and pressure? [All volumes are measured at the same temperature and pressure.]

  • A$24\,\text{dm}^3$
  • B$36\,\text{dm}^3$
  • C$48\,\text{dm}^3$
  • D$96\,\text{dm}^3$

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