Limnite Is an Ore Having a Formula That Is Sometimes

question 40

Multiple Choice

Limnite is an ore having a formula that is sometimes written as an iron(III) oxide hydrate,Fe₂O₃·xH₂O.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 Fe₂O₃·xH₂O?

• A)1
• B)2
• C)3
• D)4

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