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    Half Lives

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    A first order reaction has a half-life of 157 seconds. How much time is required for the reactant to be reduced to 12.5% of its initial concentration?

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    https://brainmass.com/chemistry/oxidation-reduction-and-electrochemistry/half-lives-6389

    Solution Preview

    Since the reaction has a half-life of 157 seconds it means that each 157 seconds the ...

    Solution Summary

    This solution works with half lives to determine the time required to reach a certain percentage of its initial concentration.

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