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Rate equations (A-level only)

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Question 18

The results of an investigation of the reaction between A\text{A}A and B\text{B}B are shown in this table:

ExperimentInitial [A][\text{A}][A] / mol dm−3\text{mol dm}^{-3}mol dm−3Initial [B][\text{B}][B] / mol dm−3\text{mol dm}^{-3}mol dm−3Initial rate / mol dm−3 s−1\text{mol dm}^{-3}\text{ s}^{-1}mol dm−3 s−1
10.3000.4000.180
2To be calculated0.8000.720

The rate equation is: rate=k[A]2[B]\text{rate} = k [\text{A}]^2 [\text{B}]rate=k[A]2[B]

What is the initial concentration of A\text{A}A in experiment 2?

A

0.2120.2120.212

B

0.3000.3000.300

C

0.4240.4240.424

D

0.6000.6000.600

Markscheme

Rate equations (A-level only) Questions

  1. A Level
  2. /Chemistry
  3. /Rate equations (A-level only)

32 exam-style questions on AQA A Level Chemistry Rate equations (A-level only), covering Rate equations (A-level only) and Determination of rate equation (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.

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