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Rates of reaction

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Question 16

A student investigates the rate of the catalytic decomposition of hydrogen peroxide solution:

2H2O2(aq)→2H2O(l)+O2(g) 2\text{H}_2\text{O}_2(\text{aq}) \rightarrow 2\text{H}_2\text{O}(\text{l}) + \text{O}_2(\text{g}) 2H2​O2​(aq)→2H2​O(l)+O2​(g)

The student uses manganese(IV) oxide as a catalyst and wants to measure the total volume of oxygen gas produced at regular 20-second intervals.

Figure 1 shows the start of the apparatus setup used in the experiment.

Figure 1: Incomplete apparatus setup for measuring gas production rate

Complete Figure 1 by drawing and labelling the apparatus that could be used to collect and measure the volume of the oxygen gas produced.

[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