Gases A and B react in a sealed vessel. B is in excess.
A(g)+2B(g)→2C(g)\mathrm{A(g) + 2B(g) \rightarrow 2C(g)}A(g)+2B(g)→2C(g)
All the gas C formed is dissolved in water to prepare a solution.
| Measurement | Value |
|---|---|
| volume of gas A used at room temperature and pressure | 360 cm3360\,\mathrm{cm^{3}}360cm3 |
| volume of solution prepared | 150 cm3150\,\mathrm{cm^{3}}150cm3 |
| volume occupied by one mole of any gas at room temperature and pressure | 24 000 cm324\,000\,\mathrm{cm^{3}}24000cm3 |
Calculate the concentration, in mol dm−3\mathrm{mol\,dm^{-3}}moldm−3, of C in the prepared solution.
122 exam-style questions on Edexcel GCSE Chemistry 8.1 Rates of reaction, covering 8.1.1 Measuring and interpreting rates of reaction, 8.1.2 Collision theory and the factors affecting rate, and 8.1.3 Catalysts and enzymes. Each one has a worked solution and a mark scheme showing where the marks go.