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Rates of reaction

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Question 110

A student is investigating how the concentration of hydrogen peroxide affects the rate of its catalytic decomposition.

The reaction produces oxygen gas according to the following equation:

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 diagram below shows the reaction mixture containing hydrogen peroxide solution and manganese(IV) oxide powder in a conical flask, which is currently open to the air.

Reaction flask

Complete the diagram to show how the student could collect the oxygen gas produced and measure its volume.

[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