Concept explainers
Using the MO diagrams, predict the bond order for the stronger bond in each pair:
(a)
(b)
(c)
(d)
Want to see the full answer?
Check out a sample textbook solutionChapter 5 Solutions
Chemistry Atoms First2e
- In the molecular orbital mode l, compare and contrast bonds with bonds. What orbitals form the bonds and what orbitals form the bonds? Assume the z-axis is the internuclear axis.arrow_forwardFumaric acid, C4H4O4, occurs in the metabolism of glucose in the cells of plants and animals. It is used commercially in beverages. The structural formula of fumaric acid is Maleic acid is the cis isomer of fumaric add. Using valence bond theory, explain why these isomers are possible.arrow_forwardPhosphoserine is a less-common amino acid. (a) Identify the hybridizations of atoms I through 5. (b) What are the approximate values of the bond angles A, B. C, and D? (c) What are the most polar bonds in the molecule?arrow_forward
- Which of the following molecules or ions are para-magnetic? What is the highest occupied molecular orbital (HOMO) in each one? Assume the molecular orbital diagram in Figure 9.16 applies to all of them. (a) NO (b) OF (c) O22 (d) Ne2+arrow_forwardUse valence bond theory to explain the bonding in F2, HF, and CIBr. Sketch the overlap of the atomic orbitals involved in the bonds.arrow_forwardAcrolein, a component of photochemical smog, has a pungent odor and irritates eyes and mucous membranes. (a) What are the hybridizations of carbon atoms 1 and 2? (b) What are the approximate values of angle A, B, and C? (c) Is cis-trans isomerism possible here?arrow_forward
- The organic compound below is a member of a class known as oximes. (a) What are the hybridizations of the two C atoms and of the N atom? (b) What is the approximate CNO angle?arrow_forwardwhat is the molecular orbital diagram of F2? (use only the 2s and 2p valence orbitals and addition goes from left to right)arrow_forward1. Construct the molecular orbital diagram for H2+2, H2+, and H2- and find there bond orders in decimal form. part b of question 6 what is the bond order of Be2+? also numerical.arrow_forward
- Which one of the following diatomic species has a bond order of 5/2 (two and a half bond)? a. Li2+ b. N2+ c. O2- d. H2- e. F2arrow_forward(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?arrow_forwardFor F2 draw and label its molecular orbital diagram. 1. Is the molecule paramagnetic? Give an explanation. 2. What is the bond order for F2?arrow_forward
- Chemistry & Chemical ReactivityChemistryISBN:9781133949640Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage LearningChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage Learning
- Chemistry: An Atoms First ApproachChemistryISBN:9781305079243Author:Steven S. Zumdahl, Susan A. ZumdahlPublisher:Cengage LearningChemistry: Principles and PracticeChemistryISBN:9780534420123Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward MercerPublisher:Cengage LearningChemistry & Chemical ReactivityChemistryISBN:9781337399074Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage Learning