An acidic solute, HA, has a Ka of 1.00 X 10-5 and a partition coefficient, Kp, between water and hexane of 5.00. Calculate the extraction efficiency if we extract a 50.00 mL sample of a 0.025 M aqueous solution of HA, buffered to a pH of 8.00, with 100.00 mL of hexane.

An acidic solute, HA, has a Ka of 1.00 X 10-5 and a partition coefficient, Kp, between water and hexane of 5.00. Calculate the extraction efficiency if we extract a 50.00 mL sample of a 0.025 M aqueous solution of HA, buffered to a pH of 8.00, with 100.00 mL of hexane.

Principles of Modern Chemistry

8th Edition

ISBN:9781305079113

Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Chapter20: Molecular Spectroscopy And Photochemistry

Section: Chapter Questions

Problem 67CP

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Question

An acidic solute, HA, has a K₁ of 1.00 X 10-5 and a partition coefficient, Kp, between water and hexane of
5.00. Calculate the extraction efficiency if we extract a 50.00 mL sample of a 0.025 M aqueous solution of
HA, buffered to a pH of 8.00, with 100.00 mL of hexane.

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