Calculated in part (b) be too high or too low? A liquid mixture is prepared by c

Question

Calculated in part (b) be too high or too low? A liquid mixture is prepared by combining N different liquids with densities P_1 P_2.., P_N. The volume of component I added to the mixture is V_i and the mass fraction of I in the mixture is X_i. The components are completely miscible. Determine which of the following two formulas should be used (give proof) to estimate the density of the liquid mixture, if the volume of the mixture equals the sum of the pure-components volumes. Use the correct formula to estimate the density (in g/cm^3) of a liquid mixture containing 60.0 wt% acetone, 25.0 wt% acetic acid, and 15.0 wt% carbon tetrachloride. Liquid benzene and liquid n-hexane are blended to form a stream flowing at a rate of 700 ibm/h. An online densitometer indicates that the stream has a density of 0.850 g/mL. Using specific gravity data from Table A.1, estimate the mass and volumetric feed rates of the two hydrocarbons to the mixing vessel (in American Engineering System). State at least two assumption required to calculate the quantities in (a).

Explanation / Answer

b) Density = (60 X + 25Y + 15Z)/100 = (12X + 5Y + 3Z)/20

where X= Density of Acetone ,Y = Density of Acetic acid , Z = Density of Carbon tetrachloride

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