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Complete Table 2 to show the initial rate of reaction of P in each experiment - AQA - A-Level Chemistry - Question 4 - 2019 - Paper 2

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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^{-3} mol dm−3^{-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^{-4} mol dm−3^{-3} s−1^{-1}.

Step 2

Experiment 2

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Answer

For Experiment 2, the concentration of P is 2.00 x 10−3^{-3} mol dm−3^{-3}. The initial rate can be deduced similarly, yielding a value of 3.2 x 10−4^{-4} mol dm−3^{-3} s−1^{-1}.

Step 3

Experiment 3

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Answer

In Experiment 3, the concentration of P is 0.50 x 10−3^{-3} mol dm−3^{-3}. The initial rate from the data is remaining constant under the same conditions, resulting in another calculation of 3.2 x 10−4^{-4} mol dm−3^{-3} s−1^{-1}.

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