Macroscale and Microscale Organic Experiments
7th Edition
ISBN: 9781305577190
Author: Kenneth L. Williamson, Katherine M. Masters
Publisher: Brooks Cole
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Chapter 4, Problem 11Q
Interpretation Introduction
Interpretation:
The reason to avoid the use of beaker for recrystallization should be determined.
Concept introduction:
Recrystallization is a technique that is used to purify the impure compounds. It is based on the principle that the solubility of substances increases with the increase in temperature.
Following are some of the types of recrystallization:
- Single-solvent recrystallization
- Multi-solvent recrystallization
- Hot filtration-recrystallization
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Curved arrows are used to illustrate the flow of electrons. Use the reaction conditions provided and follow
the arrows to draw the product formed in this reaction or mechanistic step(s).
Include all lone pairs and charges as appropriate. Ignore inorganic byproducts.
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Under aqueous acidic conditions, nitriles will react to form a neutral organic intermediate 1 that has an N atom in it first, and then they will continue to react to
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Draw the missing intermediate 1 and the final product 2 in the box below. You can draw the two structures in any arrangement you like.
CN
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H+
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structure.
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Organic bases have lone pairs of electrons that are capable of accepting protons. Lone pair electrons in a neutral or negatively charged species, or pi electron pairs. Explain the latter case (pi electron pairs).
Chapter 4 Solutions
Macroscale and Microscale Organic Experiments
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