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Rates of reaction

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Question 13

A student investigated the rate of reaction between calcium carbonate and dilute hydrochloric acid by measuring the mass of carbon dioxide lost over time.

A tangent has been drawn to the curve in Figure 1 at t=40 st = 40\text{ s}t=40 s.

Figure 1: Graph of mass of carbon dioxide lost against time with tangent at 40 s

Calculate the rate of reaction at 40 s. Show your working.

[2]

Rates of reaction Questions

  1. GCSE
  2. /Chemistry
  3. /Rates of 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.

Question bank