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13 December, 17:01

A 22 gram sample of a substance thats used to preserve fruit and vegetables has a k value of 0.1011. find the half life rounded to the nearest tenth

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  1. 13 December, 17:05
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    K value = natural log (.5) / half-life

    half-life = natural log (.5) / k value

    half-life = -.693147 / 0.1011

    half-life = 6.8560534125

    I'd say the k value should be negative AND it should have units.
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