Carbon occurs in two different isotopes, the C-12 and
C-13. C-12 is exactly 12 amu, while C-13 is 13.00335 amu. If the relative
abundance for C-12 and C-13 are 98.892% and 1.108% respectively, find the
atomic weight for carbon.
(0.98892)(12 amu) + (0.01108) (13.00335 amu) = 12.011 amu
|