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Introductory Chemistry: A Foundati...

9th Edition
Steven S. Zumdahl + 1 other
ISBN: 9781337399425

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BuyFindarrow_forward

Introductory Chemistry: A Foundati...

9th Edition
Steven S. Zumdahl + 1 other
ISBN: 9781337399425
Textbook Problem
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Two molecules that contain the same number of each kind of atom but [hat have different molecular structures are said to he isomers of each other. For example, both ethyl alcohol and dimethyl ether (shown below} have the formula C 2 H 6 O and are isomers; Based on considerations of intermolecular forces. which substance would you expect to be more volatile? Which would you expect 1 0 have the higher boiling point? Explain.

methyl ether

hyl alcohol

msp;  CH 3 O CH 3                                       CH 3 CH 2 OH

Interpretation Introduction

Interpretation:

Between CH3-O-CH3 and CH3CH2OH which is more volatile, and which has more boiling points must be explained with reason.

Concept Introduction:

Boiling point is defined as temperature at which vapor pressure of a liquid becomes equal to its atmospheric pressure. It depends on the intermolecular forces of attraction within the molecules.

Explanation

CH3CH2OH has one hydrogen atom which is attached with electronegative oxygen atom. Thus, it can form hydrogen bonds which makes it less volatile with higher boiling point

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