Question

An organic compound contain 40% carbon 6,67% hydrogen and 53.33 oxygen by mass .The molecular mass of compound is 180 .find it's empirical and molecular formula
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Answer 1

For this we make a tale as: Element Atomic Mass Mole Ratio Simple Ratio C 40.00 12 (40/12) (3.33/3.33) = 1 H 6.67 1 (6.67/1) (6.667/3.33) ...