Five hundred kilograms of an aqueous feed containing 50 mass% acetone is contacted with solvent containing 98% chloroform and 2% acetone. The mass ratio of the feed to the solvent is 1:1. Calculate the mass and composition of the extract and also the fraction of acetone in the feed extracted. The operation is carried out at 25°C. The equilibrium and tie line data are given below: Aqueous phase (mass fraction) Chloroform XB 0.0123 0.0129 0.0171 0.051 0.098 Water XA 0.8297 0.7311 0.6229 0.456 0.345 Acetone XC 0.158 0.256 0.36 0.493 0.557 Chloroform phase (mass fraction) Chloroform Ув Water УА 0.013 0.022 0.044 0.103 0.186 0.70 0.557 0.429 0.284 0.204 Acetone Ус 0.287 0.421 0.527 0.613 0.61

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