(a)-A fossilised tree was tested and contains 10 grams of Carbon-14. Given that there was 12 grams of Carbon-14 present when it died, determine the age of the fossil? Half life of Carbon-14 is 5700 years.

(b)How much Carbon-14 will be present in the sample 100 years from now?

If possible all working in understandable format, Cheers

1 answer

(a) 12(1/2)^(t/5700) = 10
t = 1499.3 years

(b) 12(1/2)^(1599.3/5700) = 9.879 grams