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<strong>Atomic</strong> Mass<br />
Calculate the atomic mass of copper if copper has two isotopes.<br />
69.1% has a mass of 62.93 amu and the rest has a mass of<br />
64.93 amu.<br />
Isotope<br />
Percent<br />
Abundance<br />
Mass<br />
Cu-63 69.1 62.93<br />
Cu-65 30.9 64.93<br />
AAM = Mass A (%A) + Mass B (%B)<br />
AAM = 43.48463 + 20.06337<br />
AAM = 63.548 amu<br />
43.48463<br />
20.06337<br />
63.548<br />
Cu 29<br />
63.548