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July 2, 2015

Homework Help: chem

Posted by Jill on Thursday, February 8, 2007 at 9:38pm.

copper has two naturally occurring isotopes. Cu-63 has a mass of 62.939 amu and relative abundance of 69.17%. Use the atomic weight of copper to determine the mass of the other copper isotope.

How do I do this?

Atomic weight=62.939*.6917 + x (1-.6917)

solve for x

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