Cobalt(II) carbonate reacts with dilute hydrochloric acid to produce carbon dioxide gas.
The rate of reaction between cobalt(II) carbonate and dilute hydrochloric acid at 25degC was investigated.
The investigation was carried out using different forms of solid cobalt(II) carbonate, while keeping the total mass of cobalt(II) carbonate and all other conditions constant.
The results are shown in Table 1.
| Form of cobalt(II) carbonate | Volume of carbon dioxide gas collected in 5 minutes in cm3\text{cm}^3cm3 |
|---|---|
| Large chips | 18 |
| Medium granules | 42 |
| Fine powder | 85 |
State, using the information in Table 1, the effect of the surface area of the cobalt(II) carbonate on the rate of this reaction.
Practise Edexcel GCSE Chemistry Rates of reaction with exam-style questions for Foundation and Higher tier. 166 questions, matched to the Edexcel GCSE Chemistry (1CH0) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.
