Calcium carbonate reacts with dilute hydrochloric acid to produce carbon dioxide gas.
The rate of reaction between calcium carbonate and dilute hydrochloric acid at 25 ∘C25\,^\circ\text{C}25∘C was investigated using different sizes of calcium carbonate pieces (marble chips).
The total mass of calcium carbonate and all other conditions were kept the same.
The results are shown in Table 1.
Table 1
| Size of calcium carbonate pieces | Volume of carbon dioxide gas collected in 2 minutes2\text{ minutes}2 minutes in cm3\text{cm}^3cm3 |
|---|---|
| Large chips | 15 |
| Medium chips | 28 |
| Fine powder | 64 |
State, using the information in Table 1, the effect of the surface area of the calcium carbonate on the rate of this reaction.
127 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.