Lecture 2262014.pdf

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Department
Chemistry
Course
CHEM 2121
Professor
Nicholas Frost
Semester
Spring

Description
Lecture 2262014Wednesday February 26 20141221 PMExtractionRemoving some species from 1 phase to another At equilibrium A qmol AVwhere qfraction remaining in aqueous phaseaqaqA 1 qmol AV orgorgplug back into K eqn and solve for qFraction remaining depends on V aq and partition coefficientsthe larger the K partition coefficient the smaller the fraction remainingIf multiple identical extractionsraise q to the nextractionsExtraction ExampleV 100 mLaqV 100 mLorgK38n1 q208remaining in aq phaseV 100 mLaqV 20 mLorgK38n5 q59 AChem Page 1
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