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A feed rate of 10000 kg/h containing 46% A by weight will be extracted with pure solvent in a multistage extraction column. Since 6% A is required to remain in the raffinate phase; a) Minimum solvent flow rate b) The number of theoretical steps required when 1.6 times the minimum value of pure solvent is used. c) Find the solvent flow rate and the amount of A in the extract phase when the separation is performed in a single stage extraction system.