CHEMISTRY W/CONNECT ACCESS CODE (LL)
CHEMISTRY W/CONNECT ACCESS CODE (LL)
4th Edition
ISBN: 9781260254754
Author: Burdge
Publisher: MCG CUSTOM
Question
Chapter 9, Problem 1KSP
Interpretation Introduction

Interpretation:

The molecular geometry of PBr3 is to be determined.

Concept introduction: In order to find the geometry of a molecule, follow the steps:

First, draw the Lewis dot structure of the molecule.

Find the number of electron pairs or domains around the central atom. Electron domain is the bond and lone pair of electrons around the central atom.

Use the VSEPR model to find the electron domain geometry.

According to VSEPR, the electron domains repel each other and arrange themselves as apart as possible in space.

Molecular geometry is the arrangement of bonded atoms. If no lone pairs are present, the molecular geometry is the same as the electron domain geometry.

The repulsion between two lone pairs is greater than that in case of lone pair–bond pair, which, in turn, is greater than the bond pair–bond pair repulsion.

Expert Solution & Answer
Check Mark

Answer to Problem 1KSP

Correct answer: Option (c)

Explanation of Solution

Reason for the correct option:

Lewis dot structure of PBr3 is shown below:

CHEMISTRY W/CONNECT ACCESS CODE (LL), Chapter 9, Problem 1KSP

In this molecule, the phosphorus atom is bonded to three bromine atoms by single bonds and there is one lone pair on the phosphorus atom.

Thus, the electron domains around the phosphorus atom are four.

According to the VSEPR model, the four electron domains repel each other and arrange themselves in space in a tetrahedral shape.

However, in this case, one lone pair is present on the phosphorus atom.

Thus, the molecular geometry is trigonal pyramidal.

Hence, option (c) is correct.

Reasons for the incorrect options:

Option (a) is incorrect because a trigonal planar shape is obtained when there is no lone pair on the central atom.

Option (b) is incorrect because a tetrahedral shape is obtained when four bonds are present.

Option (d) is incorrect because a bent shape is obtained when there are two bonds present.

Option (e) is incorrect because a T-shape is obtained from the trigonal bipyramidal geometry with two lone pairs.

Hence, options (a), (b), (d), and (e) are incorrect.

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Chapter 9 Solutions

CHEMISTRY W/CONNECT ACCESS CODE (LL)

Ch. 9.2 - Practice ProblemCONCEPTUALIZE Which of these...Ch. 9.2 - 9.2.1 Identify the polar molecules in the...Ch. 9.2 - Identify the nonpolar molecules in the following...Ch. 9.3 - Practice ProblemATTEMPT Use valence bond theory to...Ch. 9.3 - Practice ProblemBUILD For which molecule(s) can we...Ch. 9.3 - Practice ProblemCONCEPTUALIZE Which of these...Ch. 9.3 - Which of the following atoms, in its ground state,...Ch. 9.3 - According to valence bond theory, how many bonds...Ch. 9.4 - Practice Problem ATTEMPT Use hybrid orbital theory...Ch. 9.4 - Practice ProblemBUILD Use hybrid orbital theory to...Ch. 9.4 - Prob. 1PPCCh. 9.4 - How many orbitals does a set of s p 2 hybrid...Ch. 9.4 - How many p atomic orbitals are required to...Ch. 9.5 - Practice Problem ATTEMPT The active ingredient in...Ch. 9.5 - Practice ProblemBUILD Determine the total number...Ch. 9.5 - Practice ProblemCONCEPTUALIZE In terms of valence...Ch. 9.5 - Which of the following molecules contain one or...Ch. 9.5 - 9.5.2 From left to right, give the hybridization...Ch. 9.5 - Which of the following pairs of atomic orbitals on...Ch. 9.5 - 9.5.4 Which of the following pairs of atomic...Ch. 9.6 - Practice ProblemATTEMPT Use valence bond theory...Ch. 9.6 - Prob. 1PPBCh. 9.6 - Prob. 1PPCCh. 9.6 - Prob. 1CPCh. 9.6 - Prob. 2CPCh. 9.6 - Prob. 3CPCh. 9.6 - Prob. 4CPCh. 9.7 - Prob. 1PPACh. 9.7 - Prob. 1PPBCh. 9.7 - Prob. 1PPCCh. 9.7 - Prob. 1CPCh. 9.7 - Prob. 2CPCh. 9.7 - Prob. 3CPCh. 9.7 - Prob. 4CPCh. 9.8 - Practice ProblemATTEMPT Use a combination of...Ch. 9.8 - Practice ProblemBUILD Use a combination of valence...Ch. 9.8 - Prob. 1PPCCh. 9 - Prob. 1KSPCh. 9 - Which of the following species does not have...Ch. 9 - 9.3 Which of the following species is polar? Ch. 9 - Which of the following species is nonpolar (a) IC1...Ch. 9 - How is the geometry of a molecule defined, and why...Ch. 9 - 9.2 Sketch the shape of a linear triatomic...Ch. 9 - How many atoms are directly bonded to the central...Ch. 9 - Discuss the basic features of the VSEPR model....Ch. 9 - In the trigonal bipyramidal arrangement, why does...Ch. 9 - 9.6 Explain why the molecule is not square...Ch. 9 - Predict the geometries of the following species...Ch. 9 - Predict the geometries of the following species: (...Ch. 9 - Predict the geometry of the following molecules...Ch. 9 - Predict the geometry of the following molecules...Ch. 9 - Predict the geometry of the following ions using...Ch. 9 - 9.12 Predict the geometries of the following ions:...Ch. 9 - Describe the geometry around each of the three...Ch. 9 - 9.14 Which of the following species are...Ch. 9 - Prob. 15QPCh. 9 - The bonds in beryllium hydride ( BeH 2 ) molecules...Ch. 9 - Determine whether (a) BrF 5 and (b) BCl 3 are...Ch. 9 - Determine whether (a) OCS and (b) XeF 4 are polar.Ch. 9 - Prob. 19QPCh. 9 - Prob. 20QPCh. 9 - Prob. 21QPCh. 9 - Use valence bond theory to explain the bonding in...Ch. 9 - Prob. 23QPCh. 9 - Prob. 24QPCh. 9 - 9.25 What is the hybridization of atomic orbitals?...Ch. 9 - Prob. 26QPCh. 9 - 9.27 What is the angle between the following two...Ch. 9 - Prob. 28QPCh. 9 - Prob. 29QPCh. 9 - Prob. 30QPCh. 9 - Prob. 31QPCh. 9 - Prob. 32QPCh. 9 - Prob. 33QPCh. 9 - Prob. 34QPCh. 9 - Which of the following pairs of atomic orbitals of...Ch. 9 - Prob. 36QPCh. 9 - 9.37 Specify which hybrid orbitals are used by...Ch. 9 - The allene molecule ( H 2 C=C=CH 2 ) is linear...Ch. 9 - Prob. 39QPCh. 9 - Prob. 40QPCh. 9 - How many pi bonds and sigma bonds are there in the...Ch. 9 - Prob. 42QPCh. 9 - Benzo(a)pyrene is a potent carcinogen found in...Ch. 9 - What is molecular orbital theory? How does it...Ch. 9 - 9.45 Define the following terms: bonding molecular...Ch. 9 - Sketch the shapes of the following molecular...Ch. 9 - Explain the significance of bond order. Can bond...Ch. 9 - Explain in molecular orbital terms the changes in...Ch. 9 - 9.49 The formation of from two atoms is an...Ch. 9 - 9.50 Draw a molecular orbital energy level diagram...Ch. 9 - Prob. 51QPCh. 9 - Prob. 52QPCh. 9 - Which of these species has a longer bond, B 2 or B...Ch. 9 - Prob. 54QPCh. 9 - 9.55 Compare the Lewis and molecular orbital...Ch. 9 - Prob. 56QPCh. 9 - Prob. 57QPCh. 9 - Prob. 58QPCh. 9 - A single bond is almost always a sigma bond, and a...Ch. 9 - Prob. 60QPCh. 9 - In Chapter 8, we saw that the resonance concept is...Ch. 9 - Prob. 62QPCh. 9 - Prob. 63QPCh. 9 - Prob. 64QPCh. 9 - Nitryl fluoride ( FNO 2 ) is very reactive...Ch. 9 - Prob. 66QPCh. 9 - Prob. 67QPCh. 9 - Which of the following species is not likely to...Ch. 9 - Prob. 69APCh. 9 - Although both carbon and silicon are in Group 4A,...Ch. 9 - Predict the geometry of sulfur dichloride ( SCl 2...Ch. 9 - Antimony pentafluoride ( sbF 5 ) reacts with XeF 4...Ch. 9 - Prob. 73APCh. 9 - Prob. 74APCh. 9 - Predict the bond angles for the following...Ch. 9 - Briefly compare the VSEPR and hybridization...Ch. 9 - 9.77 Draw Lewis structures and give the other...Ch. 9 - Prob. 78APCh. 9 - Determine whether (a) PCl 5 and (b) H 2 CO (C...Ch. 9 - Prob. 80APCh. 9 - 9.81 Which of the following molecules are linear:...Ch. 9 - Prob. 82APCh. 9 - 9.83 The molecule can exist in either of the...Ch. 9 - Cyclopropane ( C 3 H 6 ) has the shape of a...Ch. 9 - Determine whether (a) CH 2 Cl 2 and (b) XeF 4 are...Ch. 9 - 9.86 Does the following molecule have a dipole...Ch. 9 - For which molecular geometries (linear, bent,...Ch. 9 - Prob. 88APCh. 9 - 9.89 Carbon suboxide is a colorless...Ch. 9 - The following molecules ( AX 4 Y 2 ) all have an...Ch. 9 - Prob. 91APCh. 9 - Write the ground-state electron configuration for...Ch. 9 - 9.93 What is the hybridization of C and of N in...Ch. 9 - The stable allotropic form of phosphorus is P 4 ,...Ch. 9 - Prob. 95APCh. 9 - Use molecular orbital theory to explain the...Ch. 9 - Carbon dioxide has a linear geometry and is...Ch. 9 - Draw three Lewis structures for compounds with the...Ch. 9 - Prob. 99APCh. 9 - Prob. 100APCh. 9 - Prob. 101APCh. 9 - Draw the Lewis structure of ketene ( C 2 H 2 O )...Ch. 9 - Prob. 103APCh. 9 - Which of the following ions possess a dipole...Ch. 9 - Prob. 105APCh. 9 - Prob. 106APCh. 9 - The compound TCDD, or...Ch. 9 - Progesterone is a hormone responsible for female...Ch. 9 - 9.109 Carbon monoxide is a poisonous compound due...Ch. 9 - Prob. 110APCh. 9 - Prob. 111APCh. 9 - Prob. 112APCh. 9 - 9.113 The compound 1,2-dichloroethane is...Ch. 9 - Consider an N 2 molecule in its first excited...Ch. 9 - Prob. 115APCh. 9 - Prob. 1SEPPCh. 9 - Prob. 2SEPPCh. 9 - These questions are not based on a descriptive...Ch. 9 - These questions are not based on a descriptive...
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