Valproic acid, used to treat seizures and bipolar disorder, is composed of C. H.

Question

Valproic acid, used to treat seizures and bipolar disorder, is composed of C. H. and O A 0 166 g sample is combusted in a apparatus such as that shown below The gain in mass of the H_2 O absorber is 0 166 r whereas that of the CO_2 absorber is 0 403 g. Mass gained by each absorber corresponds to mass of CO_2 or H_2 O produced What is the empirical formula for valproic acid? Express your answer as a chemical formula. If the molar mass is 144 g/mol what is the molecular formula? Express your answer as a chemical formula.

Explanation / Answer

emperical formula = C4H8O

emperical formula mass = 72

Molecular formula = (C4H8O)n

molecular formula mass = 144

n = Molecular formula mass/ emperical formula mass = 144/72= 2

molecular formula = (C4H8O)2 = C8H16O2

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