BuyFindarrow_forward

Chemistry In Focus

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

Solutions

Chapter
Section
BuyFindarrow_forward

Chemistry In Focus

7th Edition
Tro + 1 other
Publisher: Cengage Learning,
ISBN: 9781337399692
Chapter 12, Problem 27E
Textbook Problem
211 views

Butane is a gas at room temperature, and hexane is a liquid. Why is this the case?

Interpretation Introduction

Interpretation:

The reasons for butane to exist as gas and hexane as liquid at room temperature are to be determined.

Concept Introduction:

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

Butane and hexane both are hydrocarbon. Butane is a four-carbon alkane and hexane contains six carbon atoms.

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.

Boiling point of a molecule depends on the intermolecular forces and thermal energy.

Intermolecular forces are of two types: dispersion forces and dipole forces.

Dispersion forces are possessed by all the atoms or molecules, which depend on the molar mass.

Dipole forces exist between polar molecules, which depend on the polarity of the molecules.

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.

Molecules which have lower molar masses have lower dispersion forces because dispersion force is directly proportional to the molar mass.

Molecules which have higher molar masses have higher dispersion forces.

Explanation of Solution

Molecules which have lower molar masses have lower dispersion forces because it depends on the molar mass. Molecules which have higher molar masses have higher dispersion forces. Butane is a four-carbon alkane and hexane contains six carbon atoms...

Still sussing out bartleby?

Check out a sample textbook solution.

See a sample solution

The Solution to Your Study Problems

Bartleby provides explanations to thousands of textbook problems written by our experts, many with advanced degrees!

Get Started

Chapter 12 Solutions

Chemistry In Focus
Show all chapter solutions
add
Ch. 12 - A representation of liquid water is shown below....Ch. 12 - A mixture initially contains equal masses of...Ch. 12 - An older home has lead pipes. Should you boil the...Ch. 12 - Why are liquid drops spherical in shape?Ch. 12 - Would there be solids and liquids if cohesive...Ch. 12 - From a molecular viewpoint, explain the...Ch. 12 - Explain evaporation from a molecular point of...Ch. 12 - Define each of the following: a. boiling point b....Ch. 12 - Describe the relationship between intermolecular...Ch. 12 - Define each of the following intermolecular forces...Ch. 12 - Why do oil and water not mix?Ch. 12 - Explain how soap works.Ch. 12 - Define volatile and nonvolatile. How are these...Ch. 12 - Why does sweating cool the human body?Ch. 12 - Define each of the following: a. solution b....Ch. 12 - What are the unique properties of water? Why are...Ch. 12 - Where did Earths water come from?Ch. 12 - Explain the hydrologic cycle.Ch. 12 - What are the impurities present in hard water?...Ch. 12 - What are the common classifications of water based...Ch. 12 - How does a water softener work?Ch. 12 - List the four types of contaminants commonly found...Ch. 12 - Which water contaminants pose immediate health...Ch. 12 - What steps should be taken to minimize intake from...Ch. 12 - What is the SDWA?Ch. 12 - Explain how drinking water is treated before being...Ch. 12 - Is home water treatment necessary for health...Ch. 12 - Explain how each of the following home...Ch. 12 - Explain the concerns that groups like the EWG or...Ch. 12 - Butane is a gas at room temperature, and hexane is...Ch. 12 - One of the following molecules is a solid at room...Ch. 12 - Which compound would you expect to have the...Ch. 12 - Which compound would you expect to have the...Ch. 12 - All the following are liquids at room temperature....Ch. 12 - Which liquid would you expect to be least...Ch. 12 - Classify each molecule as polar or nonpolar:...Ch. 12 - Classify each molecule as polar or nonpolar:...Ch. 12 - What are the criteria used by the perfume industry...Ch. 12 - Two nonpolar substances with similar structures...Ch. 12 - What is the molarity of a solution that contains...Ch. 12 - What is the molarity of a solution that contains...Ch. 12 - How many grams of sucrose (C12H22O11) are present...Ch. 12 - How many grams of glucose (C6H12O6) are present in...Ch. 12 - How many grams of NaCl are present in 225mLofa2.3%...Ch. 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 - A 15-g sample of water contains 1.110-3gofCaCO3....Ch. 12 - Tap water is often fluoridated with a sodium...Ch. 12 - A softened water sample contains 245 ppm Na. If a...Ch. 12 - A 475-mL sample of water is extracted from a well...Ch. 12 - A 255-mL sample of water is taken from a tap and...Ch. 12 - A water sample is found to be high in lead...Ch. 12 - Your water provider posts an alert in the local...Ch. 12 - The quote by Roger Joseph Boscovich at the...Ch. 12 - Explain the difference between a polar molecule...Ch. 12 - The EPA has become concerned over the use of lead...Ch. 12 - When water is boiled, it is converted into a gas....Ch. 12 - Suppose a perfume contained the following two...Ch. 12 - Explain what you think might be occurring in dry...Ch. 12 - Over half of our nations drinking water contains...Ch. 12 - The following drawing shows a molecular view of a...

Additional Science Textbook Solutions

Find more solutions based on key concepts
Show solutions add
All of the following statements concerning beer are correct except beer is poor in minerals beer is poor in vit...

Nutrition: Concepts and Controversies - Standalone book (MindTap Course List)

What are the sources of amino acids in the pool?

Chemistry for Today: General, Organic, and Biochemistry

How does the Bobcock model explain the sunspot cycle?

Horizons: Exploring the Universe (MindTap Course List)

In the following diagram, designate each daughter cell as diploid (2n) or haploid (n).

Human Heredity: Principles and Issues (MindTap Course List)

Give an example of an aldose sugar.

Introductory Chemistry: An Active Learning Approach

What is the deep scattering layer?

Oceanography: An Invitation To Marine Science, Loose-leaf Versin

Rank the magnitudes of Bds for the closed paths a through d in Figure 29.12 from greatest to least. Figure 29.1...

Physics for Scientists and Engineers, Technology Update (No access codes included)