A solute, S, has a distribution ratio between water and ether of 7.5. Calculate the extraction efficiency if you extract a 50.0-mL aqueous sample of S using 50.0 mL of ether as:
(a) a single portion of 50.0 mL;
(b) two portions, each of 25.0 mL;
(c) four portions, each of 12.5 mL;
(d) five portions, each of 10.0 mL.
Assume that the solute is not involved in any secondary equilibria.
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solute: the substance that dissolves in a solvent to produce a homogeneous mixture.
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