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July 24, 2014

Homework Help: Chemistry

Posted by Anonymous on Friday, July 6, 2012 at 4:51am.

Theatomic mass of copper is 63.55.There are only two isotopes of copper , Cu-63 with a mass of 62.93 amu and Cu-65 w/ a mass of 64.93 amu. What is the percent of each of these two isotopes?

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