Question: Solute B is distributed between immiscible solvents A and S in a two - stage, crosscurrent extractor. The relationship is found by E = 5

Solute B is distributed between immiscible solvents A and S in a two-stage, crosscurrent extractor. The relationship is found by E =5R, where E and R are mass ratios of B to solvents in extract and raffinate, respectively. For 175 kg of feed has 0.4B to be treated by two batch contacts of 70 kg of solvent each time. Find the overall recovery.

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