During a reaction between calcium carbonate and dilute hydrochloric acid at 30 ∘C30\text{ }^{\circ}\text{C}30 ∘C, 18.0 cm3 of carbon dioxide gas was collected in the first 45 seconds45\text{ seconds}45 seconds.
Calculate the average rate of reaction, in cm3 s−1\text{cm}^3\text{ s}^{-1}cm3 s−1, for this time period.
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.
