1. Discuss the effect of solvent polarity in TC. Specifically, how does solvent
polarity affect the migration of spots and their Re values? Refer to the class TLC
2. Analyze your TLC results. How does the crude solid compare to the recrystallized
Calculate your percent recovery.
What is the main reason that we get less than 100% recovery in a recrystallization?
(Where is the greatest loss of solid?)
Once you dissolved your impure solid in a minimal amount of hot solvent, why was
it necessary to cool slowly?
6. If you took melting points, discuss what the results tell you.
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