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19 April, 23:15

A 42 gram sample of a substance that's used to treat thyroid disorders has a k-value of 0.124. Find the substance's half-life, in days. Round your answer to the nearest tenth.

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  1. 19 April, 23:32
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    K = natural log (.5) / Half-Life

    0.124 =.693147 / Half-Life

    Half-Life =.693147 / 0.124

    Half-Life = 5.5898951613 days
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