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half life of tritium is 12.5 years. how much will remain after 100 years if you started wit 256 grams?
14 years ago

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DrBob222
First determine k.
k = 0.593/t<sup>1/2</sup>, then substitute the value of k into the equation below.

ln(256/N) = k(100)
Solve for N in grams.
14 years ago
Anonymous
Thanks so much!
14 years ago
DrBob222
I made two typos. k = 0.693/t<sub>1/2</sub>
14 years ago

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