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September 2, 2015

Homework Help: chemistry

Posted by kevin on Wednesday, February 11, 2009 at 4:01am.

Ca(ClO3)2 + KCl --> CaCl2 + 3O2 + KCl

Mass of test tube = 7.918g
Mass of KCl/Ca(ClO3)2 mixture + tube = 19.164g
Mass of KCl/CaCl2 residue + tube = 18.635g

What is the weight % of Ca from the Ca(ClO3)2 impurity in the original mixture?

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