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General Chemistry - Standalone boo...

11th Edition
Steven D. Gammon + 7 others
Publisher: Cengage Learning
ISBN: 9781305580343
BuyFind

General Chemistry - Standalone boo...

11th Edition
Steven D. Gammon + 7 others
Publisher: Cengage Learning
ISBN: 9781305580343

Solutions

Chapter
Section
Chapter 10, Problem 10.97QP
Textbook Problem
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Describe the molecular orbital configurations of C2, C2, and C22−. What are the bond orders of these species? Arrange the three species by increasing bond length. Arrange the species by increasing bond enthalpy. Explain these arrangements of bond length and bond enthalpy.

Expert Solution
Interpretation Introduction

Interpretation:

The molecular orbital configurations of C22-,C2,C2+ and bond order has to be described. The species have to be arranged in increasing order of bond enthalpy and bond length and the arrangements have to be explained.

Concept Introduction:

Molecular orbital theory explains about the bonding, non-bonding and anti-bonding orbitals present in molecule.  A bond is generally formed in bonding electrons that shows the maximum presence of electrons than in anti-bonding electrons. Molecular orbital theory also explains about the magnetic properties of molecule.

The difference in the number of electrons between the bonding and anti-bonding electrons is called bond order.

Explanation of Solution

To write the molecular orbital configuration and bond order of C2

Total number of electrons = 2×6=12

Molecular orbital configuration = KK(σ2s)22s*)22p)4

The bond order can be given as,

BO=12(8-4)BO=2

The bond order of C2 is two.

To write the molecular orbital configuration and bond order of C2+

Total number of electrons = 2×6-1=11

Molecular orbital configuration = KK(σ2s)22s*)22p)3

The bond order can be given as,

BO=12(7-4)BO=1.5

The bond order of C2+ is 1

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Chapter 10 Solutions

General Chemistry - Standalone book (MindTap Course List)
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