Use the molecular orbital energy diagram below to answer the questions about bond order for the molecule Be,. Number of Bonding electrons Antibonding electrons 12 Number of Be, Bond Order This corresponds to: A. Single bond Double bond E. Between a single and double bond F. Between a double and a triple bond B. C. Triple bond G. No bond, Be, does not form. D. Half of a bond berylliuma MO's berylliump 2p 2p 02p E. 4:12 PM 4/23/2020 FLV Type here to search home end prt sc 144 hline teachin X https://cvg.cengagenow.com/ilm/takeAssignment/takeCXPCompliantActivity.do?locator=assignment-take&takeAssignmentSessionLocator=assignment-take To see favorites here, select then , and drag to the Favorites Bar folder. Or import from another browser. Import favorites I2p 2p 2p Op o*23 - 2s o*1s 1s Try Another Version Submit Answer FLV Type here to search | 5

Use the molecular orbital energy diagram below to answer the questions about bond order for the molecule Be,. Number of Bonding electrons Antibonding electrons 12 Number of Be, Bond Order This corresponds to: A. Single bond Double bond E. Between a single and double bond F. Between a double and a triple bond B. C. Triple bond G. No bond, Be, does not form. D. Half of a bond berylliuma MO's berylliump 2p 2p 02p E. 4:12 PM 4/23/2020 FLV Type here to search home end prt sc 144 hline teachin X https://cvg.cengagenow.com/ilm/takeAssignment/takeCXPCompliantActivity.do?locator=assignment-take&takeAssignmentSessionLocator=assignment-take To see favorites here, select then , and drag to the Favorites Bar folder. Or import from another browser. Import favorites I2p 2p 2p Op o23 - 2s o1s 1s Try Another Version Submit Answer FLV Type here to search | 5

Chemistry & Chemical Reactivity

9th Edition

ISBN:9781133949640

Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Chapter9: Bonding And Molecular Structure: Orbital Hybridization And Molecular Orbitals

Section: Chapter Questions

Problem 47GQ

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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.
Indigo is the dye used in coloring blue jeans. The term navy blue is derived from the use of indigo to dye British naval uniforms in the eighteenth century. The structure of the indigo molecule is a. How many bonds and bonds exist in the molecule? b. What hybrid orbitals are used by the carbon atoms in the indigo molecule?
Determine the bond order of each member of the following groups, and determine which member of each group is predicted by the molecular orbital model to have the strongest bond. (a) H2,H2+,H2 (b) O2,O22+,O22 (c) Li2,Be2+,Be2 (d) F2,F2+,F2 (e) N2,N2+,N2
The Be2 molecule has been detected experimentally. It has a bond length of 2.45 Å and a bond dissociation energy of 9.46kJmol1 . Write the ground-state electron configuration of Be2 and predict its bond order using the theory developed in the text. Compare the experimental bonding data on Be2 with those recorded for B2,C2,N2, and O2 in Table 6.3. Is the prediction that stems from the simple theory significantly incorrect?
Consider a NF molecule a. Draw orbitals of each atorn and find possible interactions among them. b. Draw atomic orbitals. using the potential energy information c. Draw molecular orbitals from the atomic orbitals of N and F. d. What is the band order of this molecule? e. Specify the types of molecular orbitals, or (NF,NF? Which of the three has the longest bond length -NF, NF, and NF ? Explain your answer.
(a) If you combine two atomic orbitals on two different atomsto make a new orbital, is this a hybrid orbital or a molecularorbital? (b) If you combine two atomic orbitals onone atom to make a new orbital, is this a hybrid orbital or amolecular orbital? (c) Does the Pauli exclusion principle apply to MOs? Explain.
What hybridization is required for central atoms that have a tetrahedral arrangement ofelectron pairs? A trigonal planar arrangement of electron pairs? A linear arrangement ofelectron pairs? How many unhybridized p atomic orbitals are present when a centralatom exhibits tetrahedral geometry? Trigonal planar geometry? Linear geometry? Whatare the unhybridized p atomic orbitals used for?
how is molecular orbital theory an improvement of valence bond theory? valence bond theory is too complicated because the orbital overlap is hard to draw. MO is easier MO theory allows us to directly solve schrodingers equation for a molecule valence bond theory is oversimplification because it uses atomic orbitals in a molecular context. mo corrects for this or MO theory is not an improvement becayse it requires too much math
One of the first drugs to be approved for use in treatment of acquired immune deficiency syndrome (AIDS) was azidothymidine (AZT). Complete the Lewis structure for AZT. a. How many carbon atoms are sp3 hybridized? b. How many carbon atoms are sp2 hybridized? c. Which atom is sp hybridized? d. How many σ bonds are in the molecule? e. How many π bonds are in the molecule? f. Wnat isthe N9N9N bond angle inthe azide (-N3) group? g. What is the H-Q-C bond angle in the side group attached to the five membered ring? h. What is the hybridization of the oxygen atom in the -CH2OH group?
Explain lowest unoccupied molecular orbital (LUMO) ?
The molecule shown below is called furan. It is represented intypical shorthand way for organic molecules, with hydrogenatoms not shown, and each of the 4 vertices representing acarbon atom. (a) What is the molecular formula for furan? (b) How manyvalence electrons are there in the molecule? (c) What isthe hybridization at each of the carbon atoms? (d) Howmany electrons are in the π system of the molecule? (e) TheC¬C¬C bond angles in furan are much smaller than thosein benzene. The likely reason is which of the following: (i) Thehybridization of the carbon atoms in furan is different fromthat in benzene, (ii) Furan does not have another resonancestructure equivalent to the one above, or (iii) The atoms in afive-membered ring are forced to adopt smaller angles than ina six-membered ring.
(a) If you combine two atomic orbitals on two different atomsto make a new orbital, is this a hybrid orbital or a molecularorbital? (b) If you combine two atomic orbitals onone atom to make a new orbital, is this a hybrid orbital or amolecular orbital? (c) Does the Pauli exclusion principle(Section 6.7) apply to MOs? Explain.