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April 25, 2015

Homework Help: chemistry

Posted by shish on Tuesday, June 17, 2014 at 6:25am.

average atomic mass of magnesium is 24.31 amu. this magnesium is composed of 79 mole % of ^24 Mg and remaining 21mole % of ^25 Mg. calculate mole % of ^26Mg.

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