# Chemistry

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

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1. First determine k.
k = 0.593/t1/2, then substitute the value of k into the equation below.

ln(256/N) = k(100)
Solve for N in grams.

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2. Thanks so much!

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3. I made two typos. k = 0.693/t1/2

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