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An aqueous solution weighting 1000 kg contains 0,3% of benzoic acid which must be

extracted by means of an co-current extraction process consisting in two stages at

20C using 1800 kg of benzene as solvent in each stage. Calculate the percent of

benzoic acid extracted. The equilibrium data at 20C are shown on the below table

An aqueous solution weighting 1000 kg contains 0,3% of benzoic acid which must be extracted by means of an co-current extraction process consisting in two stages at 20C using 1800 kg of benzene as solvent in each stage. Calculate the percent of benzoic acid extracted. The equilibrium data at 20C are shown on the below table 256 * (g of benzoic acid/kg of water) 0.915 1.135 y'g of benzoic acid/kg of benzene) 1.025 1.60 1.525 2.91 2.04 5.33 3.99 20.1 5.23 36.0 7.94