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A student used the apparatus shown in Figure 15 to investigate the reaction between marble chips and dilute hydrochloric acid - Edexcel - GCSE Chemistry - Question 8 - 2023 - Paper 2
Question 8
A student used the apparatus shown in Figure 15 to investigate the reaction between marble chips and dilute hydrochloric acid. The student recorded the volume of ga... show full transcript
Worked Solution & Example Answer:A student used the apparatus shown in Figure 15 to investigate the reaction between marble chips and dilute hydrochloric acid - Edexcel - GCSE Chemistry - Question 8 - 2023 - Paper 2
Step 1
Plotting the Results
Answer
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Use the data provided to plot the points on the graph:
- At time 0 minutes, volume = 0 cm³
- At time 1 minute, volume = 52 cm³
- At time 2 minutes, volume = 78 cm³
- At time 3 minutes, volume = 91 cm³
- At time 4 minutes, volume = 97 cm³
- At time 5 minutes, volume = 100 cm³
- At time 6 minutes, volume = 100 cm³
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Ensure the axes are labeled clearly:
- X-axis: Time in minutes
- Y-axis: Volume of gas in cm³
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After plotting all points accurately, draw a smooth curve that best fits the plotted points. The curve should reflect the increase in gas volume over time, demonstrating a gradual approach to a plateau.