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Rates of reaction

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Question 16

A student investigated the rate of reaction between calcium carbonate and dilute hydrochloric acid. The volume of carbon dioxide gas produced was recorded over time.

Graph showing a line of best fit for the volume of carbon dioxide gas produced in cm³ on the vertical y-axis against time in minutes on the horizontal x-axis. The curve starts at (0, 0) and rises through (1, 20), (2, 36), (3, 48), (4, 56), (5, 60), to level off from 6 minutes onwards at 62 cm³.

Time in minutesVolume of carbon dioxide in cm3\text{cm}^3cm3
00
120
236
348
456
560
662
762

Calculate the mean rate of production of carbon dioxide over the first 120 seconds, in cm3/s\text{cm}^3/\text{s}cm3/s.

[3]

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