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Rates of reaction

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Question 82

Figure 1 shows a graph of the volume of hydrogen gas produced during the reaction between magnesium and dilute hydrochloric acid over time.

Figure 1: A line graph showing the volume of hydrogen gas produced in cm³ against time in seconds. The y-axis ranges from 0 to 80 cm³ with major gridlines every 10 units. The x-axis ranges from 0 to 120 seconds with major gridlines every 20 units. A smooth curve starts at (0,0), rises steeply, and levels off at 72 cm³ by 100 seconds. A tangent line has been drawn touching the curve at exactly t = 50 seconds, which corresponds to a volume of 55 cm³ on the y-axis.

Time (seconds)Volume of hydrogen (cm³)
00
2028
4048
5055
6060
8068
10072
12072

State the total volume of hydrogen gas produced in the first 50 seconds.

[1]

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.

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