MEDIUMMCQ SINGLENEET ChemistryPhysical ChemistryMole _ Equivalent ConceptMolecular Formula

What is the empirical formula of a compound composed of O and Mn in equal weight ratio?

A.MnO

B.MnO2

C.Mn2O3

D.Mn2O7✓ Correct

Explanation

Let the weight of Mn and O be xg ∴ Moles of Mn 55 x and Moles of 16 x O ∴ Molar ratio of Mn : O 16 : 55 16 x x 2 55 7 2 : 7 x ∴Empirical Formula 2 7 Mn O The correct option is (d) 37 MOLE & EQUIVALENT CONCEPT

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