Chemistry & Chemical Reactivity
10th Edition
ISBN: 9781337399074
Author: John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher: Cengage Learning
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Textbook Question
Chapter 9, Problem 65SCQ
Three of the four π molecular orbitals for cyclobutadiene are pictured here. Place them in order of increasing energy. (See Figures 9.13, 9.15, 9.16, and 9.18 and the relation of orbital energy and nodes.)
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Chapter 9 Solutions
Chemistry & Chemical Reactivity
Ch. 9.1 - Use valence bond theory to describe the bonding in...Ch. 9.1 - Identify the hybridization of each underlined atom...Ch. 9.1 - Use valence bond theory to describe the bonding in...Ch. 9.2 - What is the electron configuration of the H2+ ion?...Ch. 9.2 - Could the anion Li2 exist? What is the ions bond...Ch. 9.2 - The cations O2+ and N2+ are formed when molecules...Ch. 9.3 - Photoelectron spectroscopy is s1milar to the...Ch. 9.3 - What is the energy of a photon with a wavelength...Ch. 9.3 - Using the accompanying figure, state which...Ch. 9.3 - The kinetic energy of an electron ejected from the...
Ch. 9.3 - The N2+ ions that are formed when electrons with...Ch. 9.3 - What is the empirical formula of Tynan purple?Ch. 9.3 - Butter yellow absorbs light with a wavelength of...Ch. 9.3 - Prob. 2.3ACPCh. 9 - Draw the Lewis structure for chloroform, CHCl3....Ch. 9 - Draw the Lewis structure for NF3. What are its...Ch. 9 - Draw the Lewis structure for hydroxylamine, H2NOH....Ch. 9 - Draw the Lewis structure for 1,...Ch. 9 - Draw the Lewis structure for carbonyl fluoride,...Ch. 9 - Draw the Lewis structure for acetamide, CH3CONH2....Ch. 9 - Specify the electron-pair and molecular geometry...Ch. 9 - Specify the electron-pair and molecular geometry...Ch. 9 - Prob. 9PSCh. 9 - What is the hybrid orbital set used by each of the...Ch. 9 - Draw the Lewis structures of the acid HPO2F2 and...Ch. 9 - Draw the Lewis structures of the arid HSO3F and...Ch. 9 - What is the hybridization of the carbon atom in...Ch. 9 - What is the hybridization of the carbon atoms in...Ch. 9 - What is the electron-pair and molecular geometry...Ch. 9 - What is the electron-pair and molecular geometry...Ch. 9 - Prob. 17PSCh. 9 - For each compound below, decide whether cis and...Ch. 9 - Molecular Orbital Theory (See Examples 9.49.6.)...Ch. 9 - Give the electron configurations for the ions Li2+...Ch. 9 - Calcium carbide, CaC2, contains the acetylide ion,...Ch. 9 - Platinum hexafluoride is an extremely strong...Ch. 9 - When sodium and oxygen react, one of the products...Ch. 9 - When potassium and oxygen react, one of the...Ch. 9 - Among the following, which has the shortest bond...Ch. 9 - Consider the following list of small molecules and...Ch. 9 - Prob. 27PSCh. 9 - The nitrosyl ion. NO+, has an interesting...Ch. 9 - These questions are not designated as to type or...Ch. 9 - What is the OSO angle and the hybrid orbital set...Ch. 9 - Sketch the resonance structures for the nitrite...Ch. 9 - Sketch the resonance structures for the nitrate...Ch. 9 - Sketch the resonance structures for the N2O...Ch. 9 - Compare the structure and bonding in CO2 and CO32...Ch. 9 - Numerous molecules are detected in deep space....Ch. 9 - Acrolein, a component of photochemical smog, has a...Ch. 9 - The organic compound below is a member of a class...Ch. 9 - The compound sketched below is acetylsalicylic...Ch. 9 - Phosphoserine is a less-common amino acid. (a)...Ch. 9 - Lactic acid is a natural compound found in sour...Ch. 9 - Cinnamaldehyde ocaus naturally in cinnamon oil....Ch. 9 - The ion Si2 was reported in a laboratory...Ch. 9 - The simple valence bond picture of O2 does not...Ch. 9 - Nitrogen, N2, can ionize to form N2+ or add an...Ch. 9 - Which of the homonuclear, diatomic molecules of...Ch. 9 - Which of the following molecules or ions are...Ch. 9 - Prob. 47GQCh. 9 - The structure of amphetamine, a stimulant, is...Ch. 9 - Menthol is used in soaps, perfumes, and foods. It...Ch. 9 - Prob. 50GQCh. 9 - Suppose you carry out the following reaction of...Ch. 9 - Ethylene oxide is an intermediate in the...Ch. 9 - The sulfamate ion, H2NSO3, can be thought of as...Ch. 9 - The compound whose structure is shown here is...Ch. 9 - Prob. 55ILCh. 9 - Carbon dioxide (CO2), dinitrogen monoxide (N2O),...Ch. 9 - Draw the two resonance structures that describe...Ch. 9 - Draw a Lewis structure for diimide, HNNH. Then,...Ch. 9 - Prob. 59SCQCh. 9 - Consider the three fluorides BF4, SiF4, and SF4....Ch. 9 - When two amino acids react with each other, they...Ch. 9 - What is the connection between bond order, bond...Ch. 9 - When is it desirable to use MO theory rather than...Ch. 9 - Show how valence bond theory and molecular orbital...Ch. 9 - Three of the four molecular orbitals for...Ch. 9 - Lets look more closely at the process of...Ch. 9 - Borax has the molecular formula Na2B4O5(OH)4. The...Ch. 9 - A model of the organic compound allene is shown...Ch. 9 - Prob. 69SCQCh. 9 - Prob. 70SCQCh. 9 - Bromine forms a number of oxides of varying...Ch. 9 - Prob. 72SCQCh. 9 - Urea reacts with malonic acid to produce...
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- Out of p-orbital and sp-hybrid orbital which has greater directional character and Why?arrow_forwardHow many nodes are in the highest energy molecular orbital of benzene?arrow_forward2) For each pair of molecules, generate the relevant MO diagram and predict which of the twowill have the highest bond order. (Be sure to include all valenceorbitals, and show the relative positions of the orbitals for each constituent atom.)a) HF vs HF-b) NP vs NP+c) CS vs CS+arrow_forward
- Divalent carbon species called carbenes are capable of fleeting existence. For example, methylene, :CH2, is the simplest carbene. The two unshared electrons in methylene can be either paired in a single orbital or unpaired in different orbitals. a. Identify the type of hybridization you expect carbon to adopt in singlet (spin-paired) methylene and draw an illustration of its orbital showing the location of its electrons. (4 marks) b. Identify the type of hybridization you expect carbon to adopt in triplet (spin-unpaired) methylene and draw an illustration of its orbital showing the location of its electrons.arrow_forwardWhy does the energy ordering of the molecular orbitals of the period 2 diatomic molecules change in going from N2 to O2?arrow_forwardAccording to valence bond theory, what is the total number of sp2 hybridized orbitals on all the atoms in formaldehyde, CH2O? Sketch and explain why. According to valence bond theory, how many lone pairs of electrons reside in sp hybridized orbitals in formaldehyde? explain why?arrow_forward
- How many anti-bonding pi-type molecular orbitals does 1,3-butadiene contain?arrow_forwardThe picture below represents a molecular orbital from 1, 3 – butadiene. How many nodes does this orbital have? Is this a bonding or anti-bonding molecular orbital?arrow_forwardDraw the molecular orbital diagram of ethyne, C2H2arrow_forward
- a) Use the valence electron molecular orbital diagram for O2 to propose ground state O2 ions that satisfy the following conditions:(i) An O2 ion that is paramagnetic and that has a non-integer bond order.(li) An O2 ion that is paramagnetic and that has an integer bond order.(ili) An O2 ion that is diamagnetic and that has a bond order of 3.Clearly show the charge on your ion, label all valence molecular orbitals, and show the corresponding electrons in their orbitals. Full calculations for bond orders must be included.b) Using only the valence electron molecular orbital diagram for O2, is aground state diamagnetic ion with a bond order of 2 possible? Write one or twosentences to explain why or why not.arrow_forwardWrite orbital diagrams (boxes with arrows in them) to represent the electron configuration of carbon before and after sp3 hybridization.arrow_forwardSolve for the delocalization and overall electronic energy for C4H4 (considering a single p orbital on each carbon) ? How does this compare to benzene?arrow_forward
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