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Two nonpolar substances with similar structures but different scents are mixed in a perfume vial. One of the substances has a higher molar mass than the other. Which one is smelled when the perfume vial is first opened? Which one is smelled if the mixture is left on the skin for several hours?

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Chemistry In Focus

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

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Chapter
Section
BuyFindarrow_forward

Chemistry In Focus

7th Edition
Tro + 1 other
Publisher: Cengage Learning,
ISBN: 9781337399692
Chapter 12, Problem 36E
Textbook Problem
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Two nonpolar substances with similar structures but different scents are mixed in a perfume vial. One of the substances has a higher molar mass than the other. Which one is smelled when the perfume vial is first opened? Which one is smelled if the mixture is left on the skin for several hours?

Interpretation Introduction

Interpretation:

The substance that is smelled first when a vial of perfume is opened, and the substance that can be smelled if the mixture is left on the skin for several hours are to be determined.

Concept Introduction:

A mixture that is composed of different molecules with a different range of intermolecular forces is called a perfume.

The molecules that have a high vapor pressure can vaporize easily and are called volatile liquids, whereas the molecules that have a low vapor pressure cannot vaporize easily and are called non-volatile liquids.

Explanation of Solution

The two non-polar substances that are mixed in a perfume have similar structures but vary in their molar masses. One non-polar substance has a higher molar mass than the other. The one that is smelled first is the substance with the weakest intermolecular forces because the molecules easily diffuse out into the surrounding air by breaking bonds with the neighbouring atoms at room temperature. The liquids with a lower vapor pressure do not vaporize easily because of their high molecular mass...

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Chapter 12 Solutions

Chemistry In Focus
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