Bundle: General Chemistry, Loose-Leaf Version, 11th + LabSkills PreLabs v2 for Organic Chemistry (powered by OWLv2), 4 terms (24 months) Printed ... for Ebbing/Gammon's General Chemistry, 11th

11th Edition

ISBN: 9781337542630

Author: Darrell Ebbing, Steven D. Gammon

Publisher: Cengage Learning

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Textbook Question

Chapter 10, Problem 10.21QP

Best Lewis Formula and Molecular Geometry

A student writes the Lewis electron-dot formula for the carbonate anion, CO₃²⁻, as

Chapter 10, Problem 10.21QP, Best Lewis Formula and Molecular Geometry A student writes the Lewis electron-dot formula for the , example 1

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:

Chapter 10, Problem 10.21QP, Best Lewis Formula and Molecular Geometry A student writes the Lewis electron-dot formula for the , example 2

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.

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Chapter 10, Problem 10.20QP

Chapter 10, Problem 10.22QP

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Chapter 10 Solutions

Bundle: General Chemistry, Loose-Leaf Version, 11th + LabSkills PreLabs v2 for Organic Chemistry (powered by OWLv2), 4 terms (24 months) Printed ... for Ebbing/Gammon's General Chemistry, 11th

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. 10.2E Ch. 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

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Solution Summary: The author explains that the VSEPR theory tells about the shapes of molecules and ions by taking the consideration that outermost electron pairs are arranged about each atom, minimizing the repulsion of electron-pair.

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Chapter 10 Solutions