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An aqueous feed of 5000kg/h containing 40wt% acetone is being extracted in a continuous counter current multiple unit of mixer-settlers extraction system using 98% organic solvent trichloroethane (C2H3Cl3) and 2% acetone at 25C. The outlet water raffinate will contain 5 wt% acetone. i) Estimate the minimum solvent rate if the minimum composition of acetone in the mixture, XAM,min=0.2. ii) At 1.8 times the minimum solvent rate, estimate the number of mixer-settler units which required in the extraction process. iii) What is the composition of the second mixer-settlers outlet streams? Equilibrium data \begin{tabular}{|c|c|} \hline \multicolumn{2}{|c|}{ Acetone Distribution Data (wt%)} \\ \hline Water phase (x) & C2H3Cl3 phase (y) \\ \hline 5.96 & 8.75 \\ 17.04 & 25.14 \\ 26.92 & 38.52 \\ 30.88 & 42.97 \\ 35.73 & 48.21 \\ 40.90 & 53.95 \\ 46.05 & 57.40 \\ 51.78 & 60.34 \\ \hline \end{tabular}