# Chemistry

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carbon 14 has a half life of 5715 years. If you start with a 5 gram sample of 14C, what mass is left after 15,000 years?

• Chemistry -

k = 0.693/t1/2
solve for k.

ln(No/N) = kt
No = 5.00 g
N = ?
k from above.
t = time in years = 15,000

• Chemistry -

Thank you so much.

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