(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Determine how old is a fossile where a 14C/12C ratio of 6.1 x 10^-13 is measured. 14C desintegration has a half-life of 5760 +- 40 years and proportion 14C/12C in living tissue is 1.17 x 10^-12. Determine the error in your calculation.

2. Relevant equations

Radioactive decay equation N=N0 exp(-kt/T)

3. The attempt at a solution

If N0= 1.17x10^-12

N = 6.1x10^-13

k= 0.693

T = 5800 or 5720

Solving in the equation gives

t= 5451 years for 5800 half-life and

t= 5376 years for 5720 half-life.

But inst supposed to be more years than the half-life of 14C??????

I dont understand please help me.

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# Homework Help: Carbon 14 ratio

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