Chemistry: Molecular Approach (4th Edition)

Published by Pearson
ISBN 10: 0134112830
ISBN 13: 978-0-13411-283-1

Chapter 9 - Exercises - Page 421: 57

Answer

The dipole moment is shown with an arrow in the Lewis structure. The ionic character of the $CO$ bond is ~ 25%.
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Work Step by Step

The electronegativity of $C$ is 2.5, and the electronegativity of $O$ is 3.5. The electronegativity difference is 1. Referring to Figure 9.10, we see that this is a nearly 25% ionic character for the bond. The Lewis structure is shown in the attached image.
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