SOLUTION: The half-life of C-12 is about 3,700 years. How long will it be before a 2.35g sample of C-12 decays to 1.46g of C-12? I have no clue...please help. Thank You

Algebra ->  College  -> Linear Algebra -> SOLUTION: The half-life of C-12 is about 3,700 years. How long will it be before a 2.35g sample of C-12 decays to 1.46g of C-12? I have no clue...please help. Thank You      Log On


   



Question 307041: The half-life of C-12 is about 3,700 years. How long will it be before a 2.35g sample of C-12 decays to 1.46g of C-12?
I have no clue...please help.
Thank You

Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
the half-life equation for this situation is ___ 1.46 = 2.35 (1/2)^(t / 3700) ___ where "t" is the decay time in years

use logs to solve for "t"