Question

Assume an organic compound has a partition coefficient between water and ethyl acetate equal to 6.55....

Assume an organic compound has a partition coefficient between water and ethyl acetate equal to 6.55. If there are initially 9.19 grams of the compound dissolved in 110.0 mL of water, how many grams will remain in the aqueous layer after extraction with two 10.0 mL portions of ethyl acetate?

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Answer #1

According to the data presented Conc in water/conc in ethyl acetate = 6.55 so that Kd = 6.55 The answer is correct as per the data presented. But if Conc in ethyl acetate /conc in waiter = 6.55, Kd to be used is 1/6.55 and the result will be different See the updated calculation using this value for Kd

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