Chemistry In Focus
Chemistry In Focus
7th Edition
ISBN: 9781337670425
Author: Tro
Publisher: Cengage
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Chapter 12, Problem 12.1YT
Interpretation Introduction

Interpretation: The given compound having the higher boiling point is to be identified.

Concept Introduction:

A hydrocarbon is organic compound consisting entirely of hydrogen and carbon.

The temperature at which the vapour pressure of the liquid is equal to the pressure exerted on the liquid by the surrounding atmosphere is called boiling point.

The boiling point of a molecule depends upon intermolecular forces and thermal energy.

Intermolecular forces keep the molecules together. Greater the intermolecular force, higher is the boiling point.

All atoms and molecules possess dispersion forces which depend upon their molar mass.

Polar molecules possess dipole forces between them which depend upon the polarity of the molecules.

A molecular formula consists of the chemical symbols for the constituent elements followed by numeric subscripts describing the number of atoms of each element present in the molecule.

Dispersion forces are weak intermolecular forces and are considered van der waals forces.

Temporary dipoles can occur in non-polar molecules when the electrons that constantly orbit the nucleus occupy a similar location by chance.

Higher the molar mass, higher is the magnitude of the dispersion forces, and hence, higher is the boiling point.

Expert Solution & Answer
Check Mark

Answer to Problem 12.1YT

Solution: C10H22

Explanation of Solution

The boiling point of a molecule depends upon the intermolecular forces and the thermal energy. Intermolecular forces depend upon dispersion forces and dipole forces. The molecules, C8H18 and C10H22 are alkanes and possesses dispersion forces which depends upon their molar mass. Higher the molar mass, higher is the magnitude of the dispersion forces, and hence, higher is the boiling point.

Since the molar mass of C10H22 is higher than that of C8H18, therefore, the boiling point is higher for C10H22.

Conclusion

The boiling point of C10H22 is more than that of C8H18.

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Chapter 12 Solutions

Chemistry In Focus

Ch. 12 - A representation of liquid water is shown below....Ch. 12 - Prob. 3SCCh. 12 - Prob. 4SCCh. 12 - Prob. 1ECh. 12 - Prob. 2ECh. 12 - Prob. 3ECh. 12 - Prob. 4ECh. 12 - Prob. 5ECh. 12 - Prob. 6ECh. 12 - Prob. 7ECh. 12 - Prob. 8ECh. 12 - Prob. 9ECh. 12 - Prob. 10ECh. 12 - Why does sweating cool the human body?Ch. 12 - Prob. 12ECh. 12 - Prob. 13ECh. 12 - Prob. 14ECh. 12 - Explain the hydrologic cycle.Ch. 12 - Prob. 16ECh. 12 - Prob. 17ECh. 12 - How does a water softener work?Ch. 12 - Prob. 19ECh. 12 - Prob. 20ECh. 12 - Prob. 21ECh. 12 - What is the SDWA?Ch. 12 - Prob. 23ECh. 12 - Prob. 24ECh. 12 - Prob. 25ECh. 12 - Explain the concerns that groups like the EWG or...Ch. 12 - Prob. 27ECh. 12 - Prob. 28ECh. 12 - Which compound would you expect to have the...Ch. 12 - Which compound would you expect to have the...Ch. 12 - Prob. 31ECh. 12 - Prob. 32ECh. 12 - Classify each molecule as polar or nonpolar:...Ch. 12 - Classify each molecule as polar or nonpolar:...Ch. 12 - Prob. 35ECh. 12 - Prob. 36ECh. 12 - Prob. 37ECh. 12 - Prob. 38ECh. 12 - How many grams of sucrose (C12H22O11) are present...Ch. 12 - How many grams of glucose (C6H12O6) are present in...Ch. 12 - Prob. 41ECh. 12 - How many grams of NaF are present in 4.5 L of a...Ch. 12 - A 250-g sample of hard water contains...Ch. 12 - Prob. 44ECh. 12 - Prob. 45ECh. 12 - Prob. 46ECh. 12 - Prob. 47ECh. 12 - Prob. 48ECh. 12 - Prob. 49ECh. 12 - Prob. 50ECh. 12 - Prob. 51ECh. 12 - Prob. 52ECh. 12 - Prob. 53ECh. 12 - Prob. 54ECh. 12 - Prob. 55ECh. 12 - Prob. 56ECh. 12 - Prob. 57ECh. 12 - Prob. 58E
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