Complete Table 2 to show the initial rate of reaction of P in each experiment - AQA - A-Level Chemistry - Question 4 - 2019 - Paper 2
Question 4
Complete Table 2 to show the initial rate of reaction of P in each experiment.
Experiment
Initial rate / mol dm$^{-3}$ s$^{-1}$
1
2
3
Worked Solution & Example Answer:Complete Table 2 to show the initial rate of reaction of P in each experiment - AQA - A-Level Chemistry - Question 4 - 2019 - Paper 2
Step 1
Experiment 1
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Answer
The concentration of P is 1.00 x 10−3 mol dm−3 and the initial rate of reaction is determined from the change in concentration over time. Using the data from Table 1, the initial rate is calculated to be 1.6 x 10−4 mol dm−3 s−1.
Step 2
Experiment 2
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Answer
For Experiment 2, the concentration of P is 2.00 x 10−3 mol dm−3. The initial rate can be deduced similarly, yielding a value of 3.2 x 10−4 mol dm−3 s−1.
Step 3
Experiment 3
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Answer
In Experiment 3, the concentration of P is 0.50 x 10−3 mol dm−3. The initial rate from the data is remaining constant under the same conditions, resulting in another calculation of 3.2 x 10−4 mol dm−3 s−1.
