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July 31, 2014

Homework Help: Chemistry

Posted by Mary Joy on Thursday, September 27, 2012 at 6:36am.

This Chem problem is really difficult -Need help please!
Magnesium Consists of three naturally occuring isotopes. The percent abundance of these isotopes is as follows: 24Mg(78.70%), 25Mg(10.13%) and 26Mg(11.7%). The average atomic mass of the three isotopes is 24.3050amu. If the atomic mass of 25Mg is 24.98584 amu and 26Mg is 25.98259amu, calculate the actual atomic mass of 24Mg.

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