Saturday
December 20, 2014

Homework Help: Chemistry

Posted by Lisa on Wednesday, February 20, 2013 at 3:38pm.

A thoroughly dried 1.281g sample of Na2SO4 is exposed to the atmosphere and found to gain 0.383g in mass.

What is the percent, by mass, of
Na2SO4*10 H2O in the resulting mixture of anhydrous Na2SO4 and the decahydrate

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