For the hypothetical first-order reaction A → products,k = 0.0822 s^-1.If the initial concentration of A is 0.372 M,how long would it take for A to be 28.2% consumed?

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Quizplus · Accepted Answer

For a first-order reaction, the time to reach a certain percentage consumption can be calculated using the formula: t = (1/k) * ln([A]₀/[A]t). Here, [A]₀ = 0.372 M and [A]t = 0.372 M * (1 - 0.282) = 0.267 M. Plugging in the values: t = (1/0.0822) * ln(0.372/0.267) ≈ 4.03 s.

For the Hypothetical First-Order Reaction a → Products,k = 0