Saturday
February 28, 2015

Homework Help: chemistry

Posted by Maria on Friday, February 19, 2010 at 1:42pm.

A 0.972g sample of a CaCl2*2H2O/K2C2O4*H2O solid salt mixture is dissolved in ~ 150ml of deionized water, previously adjusted to a pH that is basic. The precipitate, after having been filtered and air-dried, has a mass of 0.375 g. The limiting reactant in the salt mixture was later determined to be CaCl2*2H2O. What is the percent by mass of CaCl2*2H2O in the salt mixture?

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