Question

Solute S has a partition coefficient of 5.5 between water (phase 1) and hexane (phase 2). Calculate the concentration of solute S in hexane if [S]water is 0.054 M. [S]hexane = M If the volume of water is 80.0 mL and the volume of hexane is 17.0 mL, find the ratio of the moles of solute S in hexane to the moles of solute S in water. mol Shexane mol Swater

Answer 1

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Dato Page No Dear Given student, partition coefficient = 5.5 Es Therare? [S] water = 0.054M Appleging K= Corg - oeg organic Caq aqe aqueous those) Thus K. Cag U 5.5 * 0.054 [s] = 0.297 M hexane Given, volume of water = some velome of herane = 17 me mol Shexane mal Swater Apply formula, no. q moles (concent- ation x volume) Thus mol Shexane = [sthexarx Whexane na Swater [s] water & water 0.297 M X izme 0.054 M x 8ome 5.049 = 1-168 4.32 Best wishes !!