SOLUTION: Iodine-131 is used to find leaks in water pipes. It has a half life of 8.14 days. Write the exponential decay function for a 200 mg sample. Find the amount of Iodine 131 remaining
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-> SOLUTION: Iodine-131 is used to find leaks in water pipes. It has a half life of 8.14 days. Write the exponential decay function for a 200 mg sample. Find the amount of Iodine 131 remaining
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Question 598645: Iodine-131 is used to find leaks in water pipes. It has a half life of 8.14 days. Write the exponential decay function for a 200 mg sample. Find the amount of Iodine 131 remaining after 72 days.
You can put this solution on YOUR website! Iodine-131 is used to find leaks in water pipes.
It has a half life of 8.14 days. Write the exponential decay function for a 200 mg sample.
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A(t) = 200*(1/2)^(t/8.14)
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Find the amount of Iodine 131 remaining after 72 days.
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A(72) = 200(1/2)^(72/8.14)
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= 200*0.0022
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= 0.4349 mg
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Cheers,
Stan H.
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