Steps to determine polarity of a molecule 1- Draw the correct Lewis structure 2- Determine shape of the molecule and the angle 3- Determine polarity of different bonds in the molecule 4- Look at overall molecular geometry to determine polarity of the molecule Rules for determining polarity of a molecule: 1. When there are no polar bonds in a molecule, the molecule is nonpolar. Examples: a. Cl2 b. CH4
Steps to determine polarity of a molecule 1- Draw the correct Lewis structure 2- Determine shape of the molecule and the angle 3- Determine polarity of different bonds in the molecule 4- Look at overall molecular geometry to determine polarity of the molecule Rules for determining polarity of a molecule: 1. When there are no polar bonds in a molecule, the molecule is nonpolar. Examples: a. Cl2 b. CH4
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Transcribed Image Text:Steps to determine polarity of a molecule
1- Draw the correct Lewis structure
2- Determine shape of the molecule and the angle
3- Determine polarity of different bonds in the molecule
4- Look at overall molecular geometry to determine polarity of the molecule
Rules for determining polarity of a molecule:
1. When there are no polar bonds in a molecule, the molecule is nonpolar.
Examples:
a. Cl2
b. CH4
2. If the molecule has only one bond, determine polarity of the bond. Nonpolar bond, will
give nonpolar molecule and polar bond will give polar molecule.
Examples:
а. На
b. HCI
Transcribed Image Text:3. Molecules with more than one bond
A. The molecule is symmetrical: If there are no lone pairs on the central atom, and if all the
bonds to the central atom are the same, the molecule is nonpolar.
Examples:
1. СО2
2. BF3
3. СCI4
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