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posted by Jules Sunday, November 25, 2012 at 8:45pm.
a student heated 3.48 g of a pure sample of CaSO4 2 H2O until all the water of hydration was expelled. what was the mass of the residue?
What's the percent H2O in CuSO4.2H2O? %H2O x 3.48 = ?
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