The partial molar volumes of water and ethanol in a, Ask an Expert

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The partial molar volumes of water and ethanol in a solution with x(H2O) = 0.40 at 25 degrees C are 16.9 and 57.5 cm^3/mol, respectively.

The densities of water and ethanol are 0.997 and 0.7893 g/cm^3, respectively, at this temperature.

Please show how to calculate the volume change upon mixing sufficient ethanol with 3 mol of water to give this concentration (x(H2) = 0.40). I am getting loss as to the mol of ethanol needed.

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Category:- Chemistry
Reference No.:- M9500272

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