Recent content by rcubed

^Thanks for the reply! So its just simply finding the number of 12C Molecules first, then using the ratio to find the 14C? 155g/12gmol-1*NA = 7.78e24 7.78e24*1.32e-12 = 1.026e13 ? Is that it?

Homework Statement A small animal bone fragment found in an archaelogical site has a carbon mass of 155g. When the animal was alive, the ratio of radioactive 146C to the stable 126C was 1.31×10-12. What was the number of 146C nuclei found in the sample when the animal was alive? Homework...