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Chemistry In Focus

7th Edition
Tro + 1 other
Publisher: Cengage Learning,
ISBN: 9781337399692

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BuyFindarrow_forward

Chemistry In Focus

7th Edition
Tro + 1 other
Publisher: Cengage Learning,
ISBN: 9781337399692
Chapter 12, Problem 34E
Textbook Problem
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Classify each molecule as polar or nonpolar:

a .        CO 2 b .        CH 2 C1 2 c .        CH 3 CH 2 CH 2 CH 2 CH 2 CH 2 CH 2 CH 3 ( octane ) d .        CH 3 CHF 2

Interpretation Introduction

Interpretation:

Each of the given molecules is to be classified as polar or non-polar.

Concept Introduction:

Dipole forces exist between polar molecules, which depend upon the polarity of molecules. Permanent dipoles exist between polar molecules.

Polar bonds are formed by the electrons that are unevenly shared between the bonding atoms.

Explanation of Solution

a) Whether CO2 is a polar or a non-polar molecule.

In CO2, there are two oxygen atoms bonded to a carbon atom. Since oxygen is an electronegative atom, it pulls the electrons of carbon towards itself. However, the geometry of CO2 is linear, which results in the cancellation of the polar bonds between two CO.

Hence, CO2 is a non-polar molecule.

b) Whether CH2Cl2 is a polar or a non-polar molecule.

In CH2Cl2, there are two chlorine atoms bonded to a carbon atom. Since chlorine is an electronegative atom, it pulls the electrons of carbon towards itself. The geometry of CH2Cl2 is such that the polar bonds between two CCl do not cancel each other out.

Hence, CH2Cl2 is a polar molecule.

c) Whether CH3CH2CH2CH2CH2CH2CH2CH3 is a polar or a non-polar molecule

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Chapter 12 Solutions

Chemistry In Focus
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