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May 22, 2015

Homework Help: chemistry

Posted by kayla on Wednesday, November 17, 2010 at 4:47am.

If 267 mL of O2, measured at STP, are obtained by the decomposition of the KClO3 in a 3.33 g mixture of KCl and KClO3, 2KClO3(s) --> 2KCl(s) + 3O2

What is the percent by mass of KClO3 in the mixture?

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