Chemistry 9th Edition

Published by Cengage Learning
ISBN 10: 1133611095
ISBN 13: 978-1-13361-109-7

Chapter 9 - Covalent Bonding: Orbitals - Additional Exercises: 66

Answer

a. $sp^2$ OR $sp^2$ b. $dsp^3$ c. $sp^3$ d. $dsp^3$ e. $sp^3$

Work Step by Step

a. The molecule shown has a bent shape, which corresponds to a steric number of either 3 or 4. Because the diagram is not a flat-on view, it is very hard to tell whether the bond angle is slightly less than $109^{\circ}$ which would give a steric number of 4 or slightly less than $120^{\circ}$ which would give a steric number of 3. A steric number of 3 corresponds to a $sp^2$ hybridization, and a steric number of 4 corresponds to a $sp^3$ hybridization. b. The molecule shown has a seesaw shape, which corresponds to a steric number of 5. A steric number of 5 corresponds to a $dsp^3$ hybridization. c. The molecule shown has a trigonal pyrimidal shape, which corresponds to a steric number of 4. A steric number of 4 corresponds to a $sp^3$ hybridization. d. The molecule shown has a trigonal bipyrimidal shape, which corresponds to a steric number of 5. A steric number of 5 corresponds to a $dsp^3$ hybridization. e. The molecule shown has a tetrahedral shape, which corresponds to a steric number of 4. A steric number of 4 corresponds to a $sp^3$ hybridization.
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