Exam 3 Review Chapter 9

Exam 3 Review Chapter 9 - Chapter 9: Molecular Geometry and...

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Chapter 9: Molecular Geometry and Bonding Theory Lewis structures help us understand the number and types of bonds between atoms, but they do not show us the . Example: CCl 4 VSEPR: Electrons will “get out of each other’s way” as much as possible. 1. How many electron domains exist on the central atoms of each of the following compounds? a. NH 3 b. O 3 (nonbonding pairs vs. bonding pairs vs. multiple bonds) We use the # of electron domains around the central atom to determine the electron-domain geometry of the molecule. 2. What is the electron domain geometry of the following molecules? a. NH 3 b. O 3
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When determining the molecular geometry of a molecule, we differentiate between bonding and nonbonding electron pairs. 3. What is the molecular geometry of the following molecules? a. NH 3 b. O 3 Some steps to remember when drawing molecules: 1. 2. 3. Electron domains for nonbonding electron pairs exert repulsive forces on adjacent bonding electron pairs. 4. Use the VSEPR model to predict the molecular geometry of the following molecules. What can you say about bond angles? a. NO 2 - b. IF 5 c. ClF 3 d. SF 4
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5. Predict the approximate bond angles in a molecule of acetic acid. As the difference in electronegativity between two atoms
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This note was uploaded on 03/30/2011 for the course CHEM 105 taught by Professor Macedone during the Fall '07 term at BYU.

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Exam 3 Review Chapter 9 - Chapter 9: Molecular Geometry and...

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