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If 1.50 g of H2C2O4 2H2O were heated to drive off the water of hydration, how much anhydrous H2C2O4 would remain?

Thank you! Please explain clearly.

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H2C2O4.2H2O ==> H2C2O4 + 2H2O

mols H2C2O4.2H2O = grams/molar mass
mols H2C2O4 = same as the hydrated material.
g H2C2O4 = mols x molar mass H2C2O4.

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