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Coco12
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Homework Statement
0ops.. The title should read solving logs..
Mod note: Fixed.
the original dosage contains 280 MBq of Iodine-131. If none is lost from the body, then after 6 hr there are 274 MBq of iodine-131. What is the half life of iodine I-131?
Homework Equations
Logcx=y
The Attempt at a Solution
I tried to put
274=280(1/2)^t/6 in and solve for t. But now I know it can't be right because it is not halving every 6 hrs.. However I don't know how you would figure it out. Can someone give me a hint?
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