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May 30, 2015

Homework Help: Chemistry

Posted by Sam on Saturday, April 16, 2011 at 8:46pm.

If 237 mL of O2, measured at STP, are obtained by the decomposition of the KClO3 in a 5.44 g mixture of KCl and KClO3,
2KClO3(s)-->2KCl(s)+3O2(g)
what is the percent by mass of KClO3 in the mixture?

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