Chemistry 0620 · IGCSE · Rate of reaction

Rate of reaction — practice question

The decomposition equation for hydrogen peroxide, $\text{H}_2\text{O}_2$, is given below. $2\text{H}_2\text{O}_2 \rightarrow 2\text{H}_2\text{O} + \text{O}_2$ During an experiment, the total volume of oxygen made is $100\,\text{cm}^3$. The experiment is carried out again with $1.00\,\text{g}$ of a solid catalyst. Every other condition is kept unchanged. Which row shows the total volume of oxygen and the mass of the catalyst at the end of the second experiment?

  • Atotal volume more than $100\,\text{cm}^3$; mass of catalyst less than $1.00\,\text{g}$
  • Btotal volume $100\,\text{cm}^3$; mass of catalyst less than $1.00\,\text{g}$
  • Ctotal volume $100\,\text{cm}^3$; mass of catalyst $1.00\,\text{g}$
  • Dtotal volume more than $100\,\text{cm}^3$; mass of catalyst $1.00\,\text{g}$

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