Question

A 0.954-gram sample of hydrated magnesium sulfate, MgSO4 xH2O, is heated until all of the water is driven off. If 0.465 grams of anhydrous MgSO4 is obtained, how many water molecules combine with each formula unit of magnesium sulfate in the hydrate?
A) 5
B) 6
C) 7
D) 8

Answer

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