The rate law for a hypothetical reaction is rate = k [A]2. When the concentration is 0.10 moles/liter, the rate is 2.7 * 10-5 Ms-1. What is the value of k? A. 2.7 10-3 B. 2.7 * 10-3 M-1s-1 C. 7.2 * 105 M-1s-1 D. 2.7 * 10-4 M-1s-1

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Maliyah Peterson

25 November, 19:25

+5

Answers (1)

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Brodie Fletcher · Answer 1

Rate = k[A]^2

2.7 x 10^-5 = k[0.10]^2

k = 2.7 x 10^-5 / 0.01 = 2.7 x 10^-3

The correct answer is option B.

The rate law for a hypothetical reaction is rate = k [A]2. When the concentration is 0.10 moles/liter, the rate is 2.7 * 10-5 M*s-1. What is the value of k? A. 2.7 * 10-3 B. 2.7 * 10-3 M-1s-1 C. 7.2 * 105 M-1s-1 D. 2.7 * 10-4 M-1s-1