Chemistry, 19.08.2019 04:30 hayesvolcano

Copper is made of two isotopes. copper-63 is 69.17% abundant and it has a mass of 62.9296 amu. copper-65 is 30.83% abundant and it has a mass of 64.9278 amu. what is the weighted average mass of these two isotopes? show your work.

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Copper is made of two isotopes. copper-63 is 69.17% abundant and it has a mass of 62.9296 amu. coppe...

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