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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
Plot the Results in Figure 16
Answer
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Prepare the grid by clearly labeling the x-axis as 'time in minutes' and the y-axis as 'volume of gas in cm³'.
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For each time point given in the table:
- At 0 minutes, plot a point at (0, 0).
- At 1 minute, plot a point at (1, 52).
- At 2 minutes, plot a point at (2, 78).
- At 3 minutes, plot a point at (3, 91).
- At 4 minutes, plot a point at (4, 97).
- At 5 minutes, plot a point at (5, 100).
- At 6 minutes, plot a point at (6, 100).
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Connect the points with a smooth curve to indicate the trend of the gas volume over time, ensuring the curve reflects the increase in volume as time progresses.