separation techniquics using solute and solvent, Chemistry

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suppose n mmol of solute A in Vaq ml of aqueous solution is extracted with Vorg ml of animmiscible organic solvent. at equilibrium n1 mmol of A will remain in the aqueous layer and (no-n1)mmol will have been transfered to the organic layer. show that the concentration of A remaining in the aqeous solution after i extractions with the immiscible organic solvent ([A]) IS [A]i=(Vaq/VorgK + vaq)i(A)0

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