Bro1) The orbital potential energies for the 4s and 4p of Br are -18.65 ev and -12.49ev,respectively. Recall that the H 1s is -13.61ev. The MO diagram for HBr is not exactly thesame as HF. Draw the MO diagram for HBr, including energy levels, each orbitals shape,each orbitals character (meaning what atomic orbitals contribute to each M.O. and howmuch), symmetry labels (e.g. o and t, o* and a*), indicate the HOMO and LUMO, thebond order (show your work), whether the molecule is paramagnetic or diamagnetic. Now

Answered: Image /qna-images/answer/671daf14-9faf-4366-843f-8ec54b3fb8d2.jpg

Answered: Bro 1) The orbital potential energies…

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter6: Covalent Bonding

Section: Chapter Questions

Problem 112QRT

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Explain the difference between the and MOs for homonuclear diatomic molecules. How are bonding and antibonding orbitals different? Why are there two MOs and one MO? Why are the MOs degenerate?
The molecular ion HeH+ has an equilibrium bond length of 0.774 Å. Draw an electron correlation diagram for this ion, indicating the occupied MOs. Is HeH+ paramagnetic? When HeH+ dissociates, is a lower energy state reached by forming He+H+ or He++H ?
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 molecules N2 and CO are isoelectronic but their properties are quite different. Although as a first approximation we often use the same MO diagram for both, suggest how the MOs in N2 and CO might be different.
The orbital potential energies for the 4s and 4p of Br are -18.65 ev and -12.49 ev, respectively. Recall that the H 1s is -13.61 ev. The MO diagrams for HBr is not exactly the same as HF. Draw the MO diagram for HBr, including energy levels, each orbitals shape, each orbitals character (meaning what atomic orbitals contribute to each M.O. and how much), symmetry labels indicate the HOMO and LUMO, the bond order (show your work), whether the molecule is paramagnetic or diamagnetic. Compare and contrast the MO diagrams of HF and HBr.
Considerthese following ions: 02 -, N -, Li2 + and O - a. Based on molecular orbital theory (MOT), which of the ion(s) exhibit(s) paramagnetism? b. For those ions that are paramagnetic, determine the number of unpaired electrons. Support your answers with appropriate molecular orbital energy diagram.
what is the molecular orbital diagram of AlP? scale it to show splitting and all co tributions to MO from the AO. Draw MO modes for each MO formed. can this exist in the real world?
Indicate FALSE and TRUE statements. Explain briefly your each answer. ………Bond energy of N2 is larger than that of O2. ……… 24Cr and 29Cu have the electron configurations 3d44s2 and 3d94s2. ………The symmetry species for doubly and triply degenerate representations are designated as A and B. ………NCl5 is a stable molecule but PCl5 is not stable. ………The point group of GeCl4 is Oh. ………The ionization energies of the group II A metals are in the order Ba>Sr>Ca>Mg. ………The radius increases as nuclear charge increases for ions with the same electronic structure such as O2-, F-, Na+, Mg2+.
The following is part of a molecular orbital energy-level diagramfor MOs constructed from 1s atomic orbitals. (a) What labels do we use for the two MOs shown? (b) Forwhich of the following molecules or ions could this be theenergy-level diagram:H2, He2, H2+, He2+, or H2-?(c) What is the bond order of the molecule or ion? (d) If anelectron is added to the system, into which of the MOs will itbe added? [
(a) Sketch the molecular orbitals of the H2- ion and draw itsenergy-level diagram. (b) Write the electron configuration ofthe ion in terms of its MOs. (c) Calculate the bond order inH2-. (d) Suppose that the ion is excited by light, so that anelectron moves from a lower-energy to a higher-energy molecularorbital. Would you expect the excited-state H2- ion to bestable? (e) Which of the following statements about part (d) is correct: (i) The light excites an electron from a bonding orbitalto an antibonding orbital, (ii) The light excites an electronfrom an antibonding orbital to a bonding orbital, or (iii)In the excited state there are more bonding electrons thanantibonding electrons?
Calcium carbide, CaC2,contains the acetylide ion, C22-.Sketch the molecular orbital energy'level diagram for the ion and the electron dot strucure. (a) How many net σ and π bonds does the ion have? (b) What is the carbon-carbon bond order? (c) Compare the valence bond and MO pictures with regard to the number of σ and π bonds and the bond order. (d) How has the bond order changed on adding electrons to C2 to obtain C22-? (e) Is the C22- ion paramagnetic?
The species CO, CN-, and C22- are isoelectronic.(a) Draw their Lewis structures.(b) Draw their MO diagrams (assume 2s-2p mixing, as in N2), and give the bond order and electron configuration for each.

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