Question

Limnite is an ore having a formula that is sometimes written as an iron(III) oxide hydrate, Fe2O3xH2O. If 1.00 kg of limnite produces 0.747 kg of anhydrous Fe2O3 upon heating, what is the number of waters of hydration x in the Fe2O3xH2O?
A) 1
B) 2
C) 3
D) 4

Answer

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