copper is made up of two isotopes, Cu-63 (62.9296 amu) and Cu-65 (64.9278 amu). Given Cu's atomic mass of 63.546, what is the percent abundance of each isotope?

Question

copper is made up of two isotopes, Cu-63 (62.9296 amu) and Cu-65 (64.9278 amu).  Given Cu's atomic mass of 63.546, what is the percent abundance of each isotope?

matt101 · Answer

This is similar to the question I just answered for you, just using different numbers. Follow my steps and try it yourself!

anonymous · Answer

I suck at chem tho..

matt101 · Answer

Hey don't say that! I'll be back in a few minutes and then I'll help you in more detail. For now though take a look at that other question and try to understand what I did.

anonymous · Answer

is the answer Cu-63=.024, (.25%) and Cu-65=.975, (9.75%)??

anonymous · Answer

I have two more problems to do so could you help me with them now please, I have to go to sleep soon :/

matt101 · Answer

Actually for this question, the answers are different - maybe you can show your work? I'd rather not give you all the answers...

anonymous · Answer

-.-