A crystalline salt when heated beocmes anhydrous and loses 51.2% of it – InterviewSolution

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1.	A crystalline salt when heated beocmes anhydrous and loses 51.2% of its weight. The anhydrous salt on analysis gave the percentage composition as : Mg=20.0%,S=26.66% and O=53.33% Calculate the molecular formula of the anhydrous salt and the crystalline salt. Molecular mass of the anhydrous salt is 120.
Answer» Solution :Calculate the EMPIRICAL formula of the anhydrous salt. It comes out to be `MgSO_(4).` E.F. mass MOL. Mass = 120. Hence, MOLECULAR formula = `MgSO_(4)`.

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