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26 July, 01:59

The half-life of iodine is 8 days. If 700.00 g sample decays to 43.75, how much time has passed

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  1. 26 July, 05:43
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    Its simple, just make a chart. You start off with 700.0g of Iodine in time of 0 days. You want to divide that number by 2 (cause its the half - life). That number will represent 8 days. Divide the x grams of Iodine again, and you will get the half life of 16 days. Keep on doing that until you get 43.75 grams. Use a calculator if you need to.
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