If 10 μg (micrograms) of Tritium are present in a liter of groundwater, how many half lives have to go by befo?
Trtium half life is 12.3 yr. How many years would that be?
Update:**before the contamination is reduced to less than 1 μg per liter?
More Questions From This User See All
Answers & Comments
Verified answer
1μg/10μg = 2^(- t/12.3)
0.1 = 10^(-1) = 10^0.30103(- t/12.3) {since 2 = 10^0.30103}
Taking logarithms on both sides
-1 = - 0.30103(t/12.3)
t = 40.86 years