Asked by ashley

Naturally occurring copper contains a mixture of 69.09% copper-63 (63.9298 amu) and 30.91% copper-65 (64.9278 amu). What is the average atomic mass of copper?

Answers

Answered by DrBob222
0.6909*63.9298 + 0.3091*64.9278 = X
<b>Note: Check your post. I think the 63.9298 should be 62.9298.</b>
Answered by Anonymous
63.5474
Answered by Pal lim pal
Isotopes
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