Question

in how many years will a 80mg sample of C14 t1/2 = 5760 years be reduced to 20 mg​

Answer 1

Answer :Radio active reaction are first order reaction.

First order reaction are independent of intial concentration.

Explanation:

80 mg to 40 mg one t1/2

40mg to 20mg 0ne t1/2

Total half life equal to 2

Time required is 2x5760 years

=11,520years