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Question 7: Molecular orbital theory would predict CN-1 is cannot predict diamagnetic paramagnetic Check Reuse <> Embed H-P

Chemistry: Principles and Practice

3rd Edition

ISBN:9780534420123

Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Chapter10: Molecular Structure And Bonding Theories

Section: Chapter Questions

Problem 10.100QE: The molecular orbital diagram of NO shown in Figure 10.47 also applies to the following species....

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Bromine forms a number of oxides of varying stability. (a) One oxide has 90.90% Br and 9.10% O. Assuming its empirical and molecular formulas are the same, draw a Lewis structure of the molecule and specify the hybridization of the central atom (O). (b) Another oxide is unstable BrO. Assuming the molecular orbital diagram in Figure 9. 16 applies to BrO, write its electron configuration (where Br uses 45 and 4p orbitals). What is the highest occupied molecular orbital (HOMO) for the molecule?
The photoelectron spectrum of HBr has two main groups of peaks. The first has ionization energy 11.88 eV. The next peak has ionization energy 15.2 eV, and it is followed by a long progression of peaks with higher ionization energies. Identify the molecular orbitals corresponding to these two groups of peaks.
Discuss the nature of the bonding in the nitrite ion (NO2) . Draw the possible Lewis resonance diagrams for this ion. Use the VSEPR theory to determine the steric number, the hybridization of the central nitrogen atom, and the geometry of the ion. Show how the use of resonance structures can be avoided by introducing a de-localized MO. What bond order does the MO model predict for the NO bonds in the nitrite ion?
The molecular orbital diagram of NO shown in Figure 10.47 also applies to OF. Draw the complete molecular orbital diagram for OF. What is the OF bond order? Figure 10.47 Molecular orbital diagram for nitric oxide (NO). The molecular orbital diagram for NO predicts a bond order of 2.5 and predicts that the molecule is paramagnetic with one unpaired electron. These predictions are verified by experimental measurements.
Discuss the nature of the bonding in the nitrate ion (NO3) . Draw the possible Lewis resonance diagrams for this ion. Use the VSEPR theory to determine the steric number, the hybridization of the central N atom, and the geometry of the ion. Show how the use of resonance structures can be avoided by introducing a de-localized MO. What bond order is predicted by the MO model for the NO bonds in the nitrate ion?
The molecular orbital diagram of NO shown in Figure 10.47 also applies to the following species. Write the molecular orbital electron configuration of each, indicating the bond order and the number of unpaired electrons. (a) CN (b) CO (c) BeB (d) BC+ Figure 10.47 Molecular orbital diagram for nitric oxide (NO). The molecular orbital diagram for NO predicts a bond order of 2.5 and predicts that the molecule is paramagnetic with one unpaired electron. These predictions are verified by experimental measurements.
Compare the electron density in the 1g and 1u* molecular orbitals for H2+ shown in Figure 6.5 with the classical model for bonding for H2+ summarized in Figure 3.22b. Which of these molecular orbitals describes the bond in H2+ ?
Considering the Method of Constructing Moleculer Orbitals from Lineor Combinations of Atomic Orbitals(LLA), a- formation of moleculor orbital or bitals, from tus 4s" atomic b-Formatioa of moleculor orbital from two "Pg orbitals, atomic c- Formation of moleculor orbital from two " Px or bitals, atomic Draw the shopes of the orbitals cnd describe in cletail Ehe energies of the atomic and moleculor rbitals by showing them in the Energy Level Diagrom.
Considering the Method of Constructing Moleculer Orbitals from Lineor Combinations of Atomic Drbitcls (LCAO), a- formation of moleculor orbital or bitals, from tus 4s" atomic b-'Formatioa of moleculor orbital fcom two "Pa orbitals, atomic c- Formation of moleculor orbital from two or bitals, atomic Draw the shopes of the orbitals cnd describe in cletail Ehe energies of the atomic ond molecular orbitals by showing them in the Energy Level Diagrom.
orbitals? By the set ding 4 What are the SALCs made up of o orbitals on F atoms that can be employed in forming P-F bonds in PF;? oatahedral MH& molecule, where the o bonding can be
Bonds cal Diagrams 7 of 8( Constants Periodic Table Based on the molecular orbital diagram for NO, which of the following electronic configurations and statements are most correct? O o2202 o,2 n3 2; Magnetic O os2 o2 o,2 T»4 l; Magnetic O o22 o2 o,2 m,4; Non-magnetic O o20"2s2 om2 x„4 aj 1; Non-magnetic Submit Request Answer 8:07 AM 3/30/2021 19 F10 f11 f12 prt sc pause break insert sysrq
The diagram that follows shows the highest-energy occupiedMOs of a neutral molecule CX, where element X is in thesame row of the periodic table as C. (a) Based on the numberof electrons, can you determine the identity of X? (b) Wouldthe molecule be diamagnetic or paramagnetic? (c) Considerthe p2p MOs of the molecule. Would you expect them to havea greater atomic orbital contribution from C, have a greateratomic orbital contribution from X, or be an equal mixtureof atomic orbitals from the two atoms?