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August 29, 2014

Homework Help: Chemistry

Posted by Anonymous on Sunday, October 7, 2012 at 10:45pm.

In a certain mixture, one compound may be decomposed by heating, releasing 0.78 gram of oxygen. It is calculated that the oxygen makes up 21.5% of the compound. If the total mixture has a mass of 8 grams, what percentage of the mixture is the original compound that was decomposed?

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