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August 31, 2015

Homework Help: chemistry

Posted by Tatiana on Thursday, October 29, 2009 at 2:25pm.

A 2.000g sample of magnesium was burned in air to form an oxide. After the product was purified it was found to have a mass of 3.317g. What is the empirical formula for the product?

I know how to find a empirical formula, I just don't understand what masses I am supposed to use. Would it be 2.000g Mg and 1.317g O?

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