A first-order reaction has a half-life of 1.10 s.If the initial concentration of reactant is 0.384 M,how long will it take for the reactant concentration to reach 0.00100 M?

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Quizplus · Accepted Answer

For a first-order reaction, the half-life is constant and is given by t1/2 = 0.693/k. The time to reach a certain concentration can be calculated using the formula ln([A]0/[A]) = kt. Using the given half-life, we find k = 0.693/1.10 s. Substituting the values into the formula, we calculate the time to reach 0.00100 M from 0.384 M, which is approximately 9.45 s.

A First-Order Reaction Has a Half-Life of 1