In which of the following cases would recrystallization be favored over extraction when purifying a mixture of two solid compounds? I. When the desired compound is freely soluble in the solvent pair at all temperatures. II. When a significant difference in pKa exists between the two compounds. II. When there is a significant excess of the undesired compound.

Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
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In which of the following cases would recrystallization be favored over extraction when
purifying a mixture of two solid compounds?
I. When the desired compound is freely soluble in the solvent pair at all
temperatures.
II. When a significant difference in pKa exists between the two compounds.
II. When there is a significant excess of the undesired compound.
A. I and III
В. I
C. Il and III
D. I and II
E. I, II, and III
F. None of the above
Transcribed Image Text:In which of the following cases would recrystallization be favored over extraction when purifying a mixture of two solid compounds? I. When the desired compound is freely soluble in the solvent pair at all temperatures. II. When a significant difference in pKa exists between the two compounds. II. When there is a significant excess of the undesired compound. A. I and III В. I C. Il and III D. I and II E. I, II, and III F. None of the above
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