(Answered) The dumas method is used to determine the molecular weight

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The Dumas method is used to determine the molecular weight of a volatile liquid (M = mRT/PV;

R = 0.0821 L atm mol^-1 K^-1. The liquid weighs 0.68 g at 1.00 atm and 25°C. It occupies 277 mL. The liquid is

a. acetone (molecular weight = 58.1 g/mol)

b. ethanol (molecular weight = 46.1 g/mol)

c. ethyl acetate (molecular weight = 88.1 g/mol)

d. isopropyl alcohol (molecular weight = 60.1 g/mol)

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