MCAT Question A Day - 10/20/14 | FreeMCATPrep.com

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MCAT Question A Day - 10/20/14

What is the empirical formula of a neutral compound containing 58.6% oxygen, 39% sulfur, 2.4% hydrogen by mass?

A. HSO₃^-

B. HSO₄^-

C. H₂SO₃

D. H₂SO₄

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