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. III. When there is a significant excess of the undesired compound.
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. III. When there is a significant excess of the undesired compound.
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
Chapter16: Solubility And Precipitation Equilibria
Section: Chapter Questions
Problem 52P
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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.
III. When there is a significant excess of the undesired compound.
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