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Chemistry: An Atoms First Approach

2nd Edition
Steven S. Zumdahl + 1 other
Publisher: Cengage Learning
ISBN: 9781305079243

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BuyFindarrow_forward

Chemistry: An Atoms First Approach

2nd Edition
Steven S. Zumdahl + 1 other
Publisher: Cengage Learning
ISBN: 9781305079243
Chapter 4, Problem 32E
Textbook Problem
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Which of the molecules in Exercises 27 and 28 have net dipole moments (are polar)?

(a)

Interpretation Introduction

Interpretation: The molecules of exercise 27 and 28 having a permanent dipole moment are to be identified.

Concept introduction: Dipole moment is defined as the charge separation between two atoms in a covalent bond or between two ions in ionic bond. It is used to determine the polarity of atoms or ions. If the value of dipole moment is zero then the molecule is said to be non-polar and if the value of dipole moment is not zero then the molecule is said to be polar. If any structure is symmetrical then overall dipole moment will be zero and bond becomes non-polar.

Also a bond can be considered polar if there is some electronegativity difference between the atoms.

To determine: The molecule XeCl2 has a permanent dipole moment or not.

Explanation of Solution

If the dipole moments of each atom cancel out, then overall dipole moment will be zero. This type of compound forms non-polar bond.

The electronegativity of chlorine (Cl) atom is higher than xenon (Xe) atom. Hence, partial negative charge is developed on chlorine ion and partial positive charge is developed on xenon ion. The structure of XeCl2 is linear

Interpretation Introduction

(b)

Interpretation: The molecules of exercise 27 and 28 having a permanent dipole moment are to be identified.

Concept introduction: Dipole moment is defined as the charge separation between two atoms in a covalent bond or between two ions in ionic bond. It is used to determine the polarity of atoms or ions. If the value of dipole moment is zero then the molecule is said to be non-polar and if the value of dipole moment is not zero then the molecule is said to be polar. If any structure is symmetrical then overall dipole moment will be zero and bond becomes non-polar.

Also a bond can be considered polar if there is some electronegativity difference between the atoms.

To determine: The molecule ICl3 has a permanent dipole moment or not.

(c)

Interpretation Introduction

Interpretation: The molecules of exercise 27 and 28 having a permanent dipole moment are to be identified.

Concept introduction: Dipole moment is defined as the charge separation between two atoms in a covalent bond or between two ions in ionic bond. It is used to determine the polarity of atoms or ions. If the value of dipole moment is zero then the molecule is said to be non-polar and if the value of dipole moment is not zero then the molecule is said to be polar. If any structure is symmetrical then overall dipole moment will be zero and bond becomes non-polar.

Also a bond can be considered polar if there is some electronegativity difference between the atoms.

To determine: The molecule TeF4 has a permanent dipole moment or not.

(d)

Interpretation Introduction

Interpretation: The molecules of exercise 27 and 28 having a permanent dipole moment are to be identified.

Concept introduction: Dipole moment is defined as the charge separation between two atoms in a covalent bond or between two ions in ionic bond. It is used to determine the polarity of atoms or ions. If the value of dipole moment is zero then the molecule is said to be non-polar and if the value of dipole moment is not zero then the molecule is said to be polar. If any structure is symmetrical then overall dipole moment will be zero and bond becomes non-polar.

Also a bond can be considered polar if there is some electronegativity difference between the atoms.

To determine: The molecule PCl5 has a permanent dipole moment or not.

(e)

Interpretation Introduction

Interpretation: The molecules of exercise 27 and 28 having a permanent dipole moment are to be identified.

Concept introduction: Dipole moment is defined as the charge separation between two atoms in a covalent bond or between two ions in ionic bond. It is used to determine the polarity of atoms or ions. If the value of dipole moment is zero then the molecule is said to be non-polar and if the value of dipole moment is not zero then the molecule is said to be polar. If any structure is symmetrical then overall dipole moment will be zero and bond becomes non-polar.

Also a bond can be considered polar if there is some electronegativity difference between the atoms.

To determine: The molecule ICl5 has a permanent dipole moment or not.

(f)

Interpretation Introduction

Interpretation: The molecules of exercise 27 and 28 having a permanent dipole moment are to be identified.

Concept introduction: Dipole moment is defined as the charge separation between two atoms in a covalent bond or between two ions in ionic bond. It is used to determine the polarity of atoms or ions. If the value of dipole moment is zero then the molecule is said to be non-polar and if the value of dipole moment is not zero then the molecule is said to be polar. If any structure is symmetrical then overall dipole moment will be zero and bond becomes non-polar.

Also a bond can be considered polar if there is some electronegativity difference between the atoms.

To determine: The molecule XeCl4 has a permanent dipole moment or not.

(g)

Interpretation Introduction

Interpretation: The molecules of exercise 27 and 28 having a permanent dipole moment are to be identified.

Concept introduction: Dipole moment is defined as the charge separation between two atoms in a covalent bond or between two ions in ionic bond. It is used to determine the polarity of atoms or ions. If the value of dipole moment is zero then the molecule is said to be non-polar and if the value of dipole moment is not zero then the molecule is said to be polar. If any structure is symmetrical then overall dipole moment will be zero and bond becomes non-polar.

Also a bond can be considered polar if there is some electronegativity difference between the atoms.

To determine: The molecule SeCl6 has a permanent dipole moment or not.

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Chapter 4 Solutions

Chemistry: An Atoms First Approach
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