A mixture containing acetone (C3H6O) and chloroform (CHCI3) is prepared in which the mole fraction of chloroform is 0.4297. The partial molar volumes of acetone (A) and chloroform (C) for this mixture are VA = 74.166 Vc = 80.235 mL mol mL mol (a) What is the number of moles of each component and the volume (in mL) of the mixture if it has a total mass of 278.0 g? (b) What is the volume of the unmixed components of this mixture (in mL) if their individual molar volumes (in pure form) are V (acetone) = 73.993 mL mol mL V (chloroform) = 85.665 mol Does the total volume of the materials expand or contract upon mixing?

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A mixture containing acetone (C3H6O) and chloroform (CHCl3) is prepared in which the mole
fraction of chloroform is 0.4297. The partial molar volumes of acetone (A) and chloroform
(C) for this mixture are
mL
mol
VA = 74.166
mL
Vc = 80.235 mol
(a) What is the number of moles of each component and the volume (in mL) of the mixture
if it has a total mass of 278.0 g?
(b) What is the volume of the unmixed components of this mixture (in mL) if their individual
molar volumes (in pure form) are
V (acetone) = 73.993
V (chloroform) = 85.665
Does the total volume of the materials expand or contract upon mixing?
mL
mol
mL
mol
Transcribed Image Text:A mixture containing acetone (C3H6O) and chloroform (CHCl3) is prepared in which the mole fraction of chloroform is 0.4297. The partial molar volumes of acetone (A) and chloroform (C) for this mixture are mL mol VA = 74.166 mL Vc = 80.235 mol (a) What is the number of moles of each component and the volume (in mL) of the mixture if it has a total mass of 278.0 g? (b) What is the volume of the unmixed components of this mixture (in mL) if their individual molar volumes (in pure form) are V (acetone) = 73.993 V (chloroform) = 85.665 Does the total volume of the materials expand or contract upon mixing? mL mol mL mol
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