Chemistry: The Molecular Nature of Matter and Change 7th Edition

Published by McGraw-Hill Education
ISBN 10: 007351117X
ISBN 13: 978-0-07351-117-7

Chapter 11 - Problems: 11.47

Answer

There are nine sp2 hybridized carbons in tryptophan.

Work Step by Step

Every carbon atom with a double bond is sp2 hybridized. Every carbon atom in the rings (8 carbons) and the carbonyl carbon has a double bond. Hence, nine carbon atoms in tryptophan are sp2 hybridized.
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