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13 October, 05:50

After 62.0 min, 33.0% of a compound has decomposed. What is the half-life of this reaction assuming first-order kinetics?

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  1. 13 October, 06:48
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    Half life is determined using the equation expressed as:

    A = Ao e^-kt

    First, we need to find for the value k.

    A =.67Ao = Ao e ^-k (33 min)

    k = 0.0121

    The half-life is then calculated as follows:

    A =.5Ao = Ao e ^-0.0121 (t)

    t = 57.28 min
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