Bundle: Principles of Modern Chemistry, Loose-leaf Version, 8th + LMS Integrated for OWLv2 with MindTap Reader, 4 terms (24 months) Printed Access Card
8th Edition
ISBN: 9781305786950
Author: David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher: Cengage Learning
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Chapter 6, Problem 70AP
The molecular ion
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The bond energy of C2 is 599 kJ/mol, the bond distance is 110 pm. Take a rough estimate of the Coulomb repulsion in doubly ionized C2 (i.e., C22+). How far would the C-C bond have to stretch for the Coulomb repulsion to be less than the bond energy in neutral C2? Do you think that the C22+ molecule will still be stable?
Chapter 6 Solutions
Bundle: Principles of Modern Chemistry, Loose-leaf Version, 8th + LMS Integrated for OWLv2 with MindTap Reader, 4 terms (24 months) Printed Access Card
Ch. 6 - Determine the number of nodes along the...Ch. 6 - Determine the number of nodes along the...Ch. 6 - Sketch the shape of each of the molecular...Ch. 6 - Sketch the shape of each of the molecular...Ch. 6 - Compare the electron density in the 1g and 1u*...Ch. 6 - Explain why 1g is the ground state for H2+ . By...Ch. 6 - Prob. 7PCh. 6 - Predict the ground electronic state of the He22+...Ch. 6 - Prob. 9PCh. 6 - Prob. 10P
Ch. 6 - Without consulting tables of data, predict which...Ch. 6 - Without consulting tables of data, predict which...Ch. 6 - Without consulting tables of data, on the same...Ch. 6 - Without consulting tables of data, on the same...Ch. 6 - Suppose we supply enough energy to H2 to remove...Ch. 6 - Suppose we supply enough energy to He2+ to remove...Ch. 6 - Prob. 17PCh. 6 - When one electron is added to an oxygen molecule,...Ch. 6 - Predict the valence electron configuration and the...Ch. 6 - Predict the valence electron configuration and the...Ch. 6 - Prob. 21PCh. 6 - For each of the following valence electron...Ch. 6 - For each of the electron configurations in Problem...Ch. 6 - For each of the electron configurations in Problem...Ch. 6 - Following the pattern of Figure 6.21, work out the...Ch. 6 - Following the pattern of Figure 6.21, work out the...Ch. 6 - The bond length of the transient diatomic molecule...Ch. 6 - The compound nitrogen oxide (NO) forms when the...Ch. 6 - What would be the electron configuration for a HeH...Ch. 6 - The molecular ion HeH+ has an equilibrium bond...Ch. 6 - Prob. 31PCh. 6 - Predict the ground state electronic configuration...Ch. 6 - The bond dissociation energies for the species NO,...Ch. 6 - The ionization energy of CO is greater than that...Ch. 6 - Photoelectron spectra were acquired from a sample...Ch. 6 - Photoelectron spectra were acquired from a sample...Ch. 6 - Prob. 37PCh. 6 - From the n=0 peaks in the photoelectron spectrum...Ch. 6 - The photoelectron spectrum of HBr has two main...Ch. 6 - The photoelectron spectrum of CO has four major...Ch. 6 - Write simple valence bond wave functions for the...Ch. 6 - Write simple valence bond wave functions for the...Ch. 6 - Both the simple VB model and the LCAO method...Ch. 6 - Both the simple VB model and the LCAO method...Ch. 6 - Write simple valence bond wave functions for...Ch. 6 - Write simple valence bond wave functions for...Ch. 6 - Write simple valence bond wave functions for the...Ch. 6 - Write simple valence bond wave functions for the...Ch. 6 - Formulate a localized bond picture for the amide...Ch. 6 - Formulate a localized bond picture for the...Ch. 6 - Prob. 51PCh. 6 - Draw a Lewis electron dot diagram for each of the...Ch. 6 - Describe the hybrid orbitals on the chlorine atom...Ch. 6 - Describe the hybrid orbitals on the chlorine atom...Ch. 6 - The sodium salt of the unfamiliar orthonitrate ion...Ch. 6 - Describe the hybrid orbitals used by the carbon...Ch. 6 - Describe the bonding in the bent molecule NF2 ....Ch. 6 - Describe the bonding in the bent molecule OF2 ....Ch. 6 - The azide ion (N3) is a weakly bound molecular...Ch. 6 - Formulate the MO structure of (NO2+) for localized...Ch. 6 - Discuss the nature of the bonding in the nitrite...Ch. 6 - Discuss the nature of the bonding in the nitrate...Ch. 6 - The pyridine molecule (C5H5N) is obtained by...Ch. 6 - For each of the following molecules, construct the...Ch. 6 - (a) Sketch the occupied MOs of the valence shell...Ch. 6 - Calcium carbide (CaC2) is an intermediate in the...Ch. 6 - The B2 molecule is paramagnetic; show how this...Ch. 6 - The Be2 molecule has been detected experimentally....Ch. 6 - Prob. 69APCh. 6 - The molecular ion HeH+ has an equilibrium bond...Ch. 6 - The MO of the ground state of a heteronuclear...Ch. 6 - The stable molecular ion H3+ is triangular, with...Ch. 6 - According to recent spectroscopic results,...Ch. 6 - trans-tetrazene (N4H4) consists of a chain of four...
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- Best Lewis Formula and Molecular Geometry A student writes the Lewis electron-dot formula for the carbonate anion, CO32, as a Does this Lewis formula obey the octet rule? Explain. What are the formal charges on the atoms? Try describing the bonding for this formula in valence bond terms. Do you have any difficulty doing this? b Does this Lewis formula give a reasonable description of the electron structure, or is there a better one? If there is a better Lewis formula, write it down and explain why it is better. c The same student writes the following resonance description for CO2: Is there something wrong with this description? (What would you predict as the geometries of these formulas?) d Is one or the other formula a better description? Could a value for the dipole moment help you decide? e Can you write a Lewis formula that gives an even better description of CO2? Explain your answer.arrow_forwardGiven that the ionization energy of F2 is 290 kJ/mol, do the following: a. Calculate the bond energy of F2. You will need to look up the bond energy of F2 and ionization energy of F. b. Explain the difference in bond energy between F2 and F2 using MO theory.arrow_forwardConsider the pyrosulfate ion, S2O72-. It has no sulfur–sulfur nor oxygen–oxygen bonds. (a) Write a Lewis structure for the pyrosulfate ion using only single bonds. (b) What is the formal charge on the sulfur atoms for the Lewis structure you drew in part (a)? (c) Write another Lewis structure using six bonds and two O—S bonds. (d) What is the formal charge on each atom for the structure you drew in part (c)?arrow_forward
- Predict the ordering of the C—O bond lengths in CO, CO2, and CO32-arrow_forwardCalculate the (molar) energy of electrostatic repulsion between two hydrogen nuclei at the separation in H2 (74.1 pm). The result is the energy that must be overcome by the attraction from the electrons that form the bond. Does the gravitational attraction between the nuclei play any significant role? Hint: The gravitational potential energy of two masses is equal to −Gm1m2/r; the gravitational constant G is listed inside the front cover.arrow_forwardWhat is the bond energy calculation for C6H6 and 3h2 gives C6H12 in chemistry?arrow_forward
- Using hybridization, predict how the bond length of the C − C σ bond in HC ≡ C − C ≡ CH should compare with the C − C σ bonds in CH3CH3 and CH2 = CH − CH = CH2.arrow_forwardGive the molecular orbital configuration for the valence electrons in C2 2−. Will this ion be stable?arrow_forwardChoose the best Lewis structure for C2H30¯. (It will help to work out the missing formal charges for the atoms in these different structures) [Image description: Lewis structure A two C atoms doubly bound to each other. One C has two other single bonds to H atoms. The other C has one more single bond to a H atom and one more single bond to a O atom. There are three electron pairs on O. Lewis structure B has a C atom and a O atom doubly bound to each other. The C has two other single bonds to H atoms. The O has one more single bond to a H atom and one more single bond to a C atom. There are three electron pairs on this C. Lewis structure C has a O atom and a C atom doubly bound to each other. The O has two other single bonds to H atoms. The C has one more single bond to a H atom and one more single bond to another C atom. There are three electron pairs on this C. Lewis structure D has two C atoms singly bound to each other. One C has an electron pair plus two more single bonds to H…arrow_forward
- According to Huckel theory, what is the difference in total energy between the anion (C6H6) and the dication (C6H6)2+ of Benzene? In your work, explicitly state which orbitals are occupied in case of the anion and the dictation and what the total energy of each of the two ions is. The total energy difference is defined as AE = Eanion Ea dication· O 2a – 23 O 3a + B O a + B O 2a + 28 3a - Barrow_forwardExplain the below ? Compounds containing a C–Z σ bond where Z = an electronegative elementarrow_forward1) Why is it important to understand the molecular geometry or shape of molecules and ions in chemistry? H2Se CCl4 CH2Cl2 HCN NH3Cl+ NH2- CH3COCH3 CH3COOH 2) Among the eight molecules and ions studied in this experiment, (a) which molecule(s) or ion(s) are polar, and which ones are non-polar? (b) What is the difference between polar and non-polar molecules or ions? (c) What two factors dictate the polarity of the molecule or ion?arrow_forward
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