Chemistry: The Molecular Science (5th Edition)

Published by Cengage Learning
ISBN 10: 1285199049
ISBN 13: 978-1-28519-904-7

Chapter 7 - Molecular Structures - Questions for Review and Thought - Applying Concepts - Page 325f: 89


The extra nitrogen

Work Step by Step

We know that Benzene is relatively non-polar since it contains only hydrogen and carbon. However, the addition of the nitrogen in pyrdine makes the molecule far more polar. Since the poles in a polar molecule are attracted to opposite poles in other polar molecules, such as water, they dissolve well in polar substances. Thus, the extra nitrogen increases polarity, which explains increased solubility in water.
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