Zinc reacts with dilute hydrochloric acid to produce hydrogen gas.
The rate of reaction between zinc and dilute hydrochloric acid at 20 ∘C20\,^\circ\text{C}20∘C was investigated using different sizes of zinc pieces.
The mass of zinc and all other conditions were kept the same.
The results are shown in Table 1.
Table 1
| Size of zinc pieces | Volume of hydrogen gas collected in 3 minutes in cm3\text{cm}^3cm3 |
|---|---|
| Large granules | 12 |
| Small granules | 34 |
| Powder | 78 |
State, using the information in Table 1, the effect of the surface area of the zinc 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.