General Chemistry - Standalone book (MindTap Course List)
11th Edition
ISBN: 9781305580343
Author: Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Publisher: Cengage Learning
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Chapter 10, Problem 10.98QP
Interpretation Introduction
Interpretation:
The dipole moment for completely ionic molecule and the fraction of ionic character in the molecule has to be estimated.
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Molecules can be polar because of the unsymmetrical distribution of electrons. The dipole moment, μ Q r
μ=Q×r
The SI unit of dipole moment is the coulomb-meter (C⋅m), but another common unit is the debye (D). The two are related as
3.336×10^−30 C⋅m=1 D
The percent ionic character is a comparison of the measured dipole moment of the bond to the expected dipole moment if electrons are instead transferred:
%ionic character=measured dipole/if electrons transferred×100%
The dipole moment if electrons are completely transferred is one for which a full unit of charge (1.60×10^−19 C) exists on each end of the bond.
The dipole measured for HI is 0.380 D. The bond distance is 161 pm. What is the percent ionic character of the HI bond?
Express your answer as a percent to three significant figures.
Describe the molecular dipole of OCl2.
The gaseous potassium chloride molecule has a measured dipole moment of 10.3 D, which indicates that it is a very polar molecule. The separation between the nuclei in this molecule is 2.67 Å. What would the dipole moment of a KCl molecule be if there were opposite charges of one fundamental unit (1.60 × 10-19 C) at the nuclei?
A neutral diatomic molecule has a dipole moment of 1.1 D and a bond length of 1.85 Å. What is the
magnitude of the charge on each atom? State your answer in units of e (the electron charge). Recall
that 1 D = 0.208 eÅ.
Chapter 10 Solutions
General Chemistry - Standalone book (MindTap Course List)
Ch. 10.1 - An atom in a molecule is surrounded by four pairs...Ch. 10.1 - Use the VSEPR method to predict the geometry of...Ch. 10.1 - Prob. 10.2ECh. 10.2 - Bromine trifluoride, BrF3, has a nonzero dipole...Ch. 10.2 - Which of the following would be expected to have a...Ch. 10.2 - Two molecules, each with the general formula AX3,...Ch. 10.3 - Using hybrid orbitals, describe the bonding in NH3...Ch. 10.4 - Describe the bonding on the carbon atom in carbon...Ch. 10.4 - Dinitrogen difluoride (see Example 10.5) exists as...Ch. 10.4 - Prob. 10.3CC
Ch. 10.6 - The C2 molecule exists in the vapor phase over...Ch. 10.6 - Give the orbital diagram and electron...Ch. 10 - Describe the main features of the VSEPR model.Ch. 10 - According to the VSEPR model, what are the...Ch. 10 - Why is a lone pair expected to occupy an...Ch. 10 - Prob. 10.4QPCh. 10 - Explain why nitrogen trifluoride has a small...Ch. 10 - Prob. 10.6QPCh. 10 - What is the angle between two sp3 hybrid orbitals?Ch. 10 - Prob. 10.8QPCh. 10 - Prob. 10.9QPCh. 10 - How does the valence bond description of a...Ch. 10 - Prob. 10.11QPCh. 10 - What factors determine the strength of interaction...Ch. 10 - Prob. 10.13QPCh. 10 - Prob. 10.14QPCh. 10 - Prob. 10.15QPCh. 10 - Describe the bonding in O3, using molecular...Ch. 10 - Prob. 10.17QPCh. 10 - Which of the following molecular geometries does...Ch. 10 - Which of the following would be a polar molecule?...Ch. 10 - Prob. 10.20QPCh. 10 - Best Lewis Formula and Molecular Geometry A...Ch. 10 - Prob. 10.22QPCh. 10 - Prob. 10.23QPCh. 10 - Which of the following molecular models correctly...Ch. 10 - Prob. 10.25QPCh. 10 - Prob. 10.26QPCh. 10 - Indicate what hybrid orbital depicted below is...Ch. 10 - An atom in a molecule has two bonds to other atoms...Ch. 10 - Two compounds have the same molecular formula,...Ch. 10 - A neutral molecule is identified as a...Ch. 10 - Acetic acid, the sour constituent of vinegar, has...Ch. 10 - What are the bond angles predicted by the VSEPR...Ch. 10 - Predict the shape or geometry of the following...Ch. 10 - Use the electron-pair repulsion model to predict...Ch. 10 - Predict the geometry of the following ions, using...Ch. 10 - Use the VSEPR model to predict the geometry of the...Ch. 10 - For each of the following molecules, state the...Ch. 10 - For each of the following molecules, state the...Ch. 10 - Prob. 10.39QPCh. 10 - From the electron-pair repulsion model, predict...Ch. 10 - Predict the geometries of the following ions,...Ch. 10 - Name the geometries expected for the following...Ch. 10 - a The molecule AsF3 has a dipole moment of 2.59 D....Ch. 10 - a The molecule BrF3 has a dipole moment of 1.19 D....Ch. 10 - Which of the following molecules would be expected...Ch. 10 - Which of the following molecules would be expected...Ch. 10 - What hybrid orbitals would be expected for the...Ch. 10 - What hybrid orbitals would be expected for the...Ch. 10 - What hybrid orbitals would be expected for the...Ch. 10 - What hybrid orbitals would be expected for the...Ch. 10 - a Mercury(II) chloride dissolves in water to give...Ch. 10 - a Nitrogen trifluoride, NF3, is a relatively...Ch. 10 - a Carbonyl fluoride, COF2, is an extremely...Ch. 10 - a The molecule HNNH exists as a transient species...Ch. 10 - The hyponitrite ion, ONNO, exists in solid...Ch. 10 - Fumaric acid, C4H4O4, occurs in the metabolism of...Ch. 10 - Describe the electronic structure of each of the...Ch. 10 - Use molecular orbital theory to describe the...Ch. 10 - Prob. 10.59QPCh. 10 - Write the molecular orbital configuration of the...Ch. 10 - Predict the molecular geometry of the following: a...Ch. 10 - Prob. 10.62QPCh. 10 - Which of the following molecules or ions are...Ch. 10 - Which of the following molecules or ions are...Ch. 10 - Describe the hybrid orbitals used by each carbon...Ch. 10 - Prob. 10.66QPCh. 10 - Explain how the dipole moment could be used to...Ch. 10 - Two compounds have the formula Pt(NH3)2Cl2....Ch. 10 - Explain in terms of bonding theory why all four...Ch. 10 - Explain in terms of bonding theory why all atoms...Ch. 10 - What is the molecular orbital configuration of...Ch. 10 - Prob. 10.72QPCh. 10 - Calcium carbide, CaC2, consists of Ca2+ and C22...Ch. 10 - Sodium peroxide, Na2O2, consists of Na+ and O22...Ch. 10 - The oxygen oxygen bond in O2 is 112 pm and in O2...Ch. 10 - The nitrogennitrogen bond distance in N2 is 109...Ch. 10 - Using molecular orbital theory, determine the...Ch. 10 - The ionization energy of O2 is smaller than the...Ch. 10 - Prob. 10.79QPCh. 10 - Prob. 10.80QPCh. 10 - Prob. 10.81QPCh. 10 - Prob. 10.82QPCh. 10 - What is the biological importance of stratospheric...Ch. 10 - Prob. 10.84QPCh. 10 - Prob. 10.85QPCh. 10 - The bond length in C2 is 131 pm. Compare this with...Ch. 10 - Calcium carbide, CaC2, has an ionic structure with...Ch. 10 - Write Lewis formulas for the BF molecule (two with...Ch. 10 - Boron trifluoride, BF3, reacts with ammonia, NH3,...Ch. 10 - Prob. 10.90QPCh. 10 - Allene (1,2-propadicne), a gas, has the following...Ch. 10 - Prob. 10.92QPCh. 10 - The triiodide ion, I3, and the azide ion, N3, have...Ch. 10 - Hydrogen azide (also known as hydrazoic acid),...Ch. 10 - Prob. 10.95QPCh. 10 - A molecule XF6 (having no lone pairs) has a dipole...Ch. 10 - Describe the molecular orbital configurations of...Ch. 10 - Prob. 10.98QPCh. 10 - Three different compounds have the same molecular...Ch. 10 - Prob. 10.100QPCh. 10 - Prob. 10.101QPCh. 10 - Solid sulfur normally consists of crystals of S8...Ch. 10 - Prob. 10.103QPCh. 10 - Consider the bonding in nitrate ion, NO3. First...Ch. 10 - A molecular compound is composed of 52.5% Xe,...Ch. 10 - A molecular compound is composed of 58.8% Xe,...Ch. 10 - A compound of chlorine and fluorine. ClFn, reacts...Ch. 10 - Excess fluorine, F2(g), reacts at 150C with...Ch. 10 - Prob. 10.109QPCh. 10 - One resonance formula of benzene, C6H6, is What is...
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- Consider the following molecules: SiH4, PH3, H2S. In each case, a central atom is surrounded by four electron pairs. In which of these molecules would you expect the bond angle to be less than 109.5? Explain your reasoning.arrow_forwardA neutral molecule is identified as a tetrafluoride, XF4, where X is an unknown atom. If the molocule has a dipole moment of 0.63 D, can you give some possibilities for the identity of X?arrow_forwardBest 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_forward
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