General Chemistry - Standalone book (MindTap Course List)
General Chemistry - Standalone book (MindTap Course List)
11th Edition
ISBN: 9781305580343
Author: Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Publisher: Cengage Learning
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Chapter 23, Problem 23.32QP

(a)

Interpretation Introduction

Interpretation:

For the given reactions, the equation has to be completed and balanced.

Concept Introduction:

Combustion reaction is the one in which, the substance is burnt in presence of oxygen.  If any hydrocarbon is burnt in presence of oxygen, the products obtained are carbon dioxide and water only.

(a)

Expert Solution
Check Mark

Answer to Problem 23.32QP

The balanced equation for the given reaction can be written as,

2C4H10+ 13O2  8CO2+ 10H2O

Explanation of Solution

The given reaction in the problem statement is an combustion reaction and hence, the product obtained will be carbon dioxide and water only.  Hence, the raw equation can be written as,

C4H10+ O2  CO2+ H2O

As the total number of atoms present in both reactants and products must be equal, balancing has to be done.  To balance the carbon atom in both sides, the product side has to be multiplied by 4 for carbon dioxide and 5 for water.  This leads, balancing of both carbon and hydrogen atoms on both sides.

C4H10+ O2  4CO2+ 5H2O

Oxygen count was thirteen in product side.  But in the reactant side it is two.  Hence, multiplying by 13/2 on reactant side balances the oxygen atom also on both sides.  Therefore, the balanced chemical equation for the given reaction can be given as,

C4H10132O2  4CO2+ 5H2O

To remove the fraction multiply all the compounds by 2.  This gives the balanced equation as,

2C4H10+ 13O2  8CO2+ 10H2O

Conclusion

The given incomplete combustion reaction is completed and the balanced chemical equation also written.

(b)

Interpretation Introduction

Interpretation:

For the given reactions, the equation has to be completed and balanced.

Concept Introduction:

Oxidation is loss of electron by a species.  This also can be said as addition of oxygen.  Reduction is a process in which electrons are gained by a species.

(b)

Expert Solution
Check Mark

Answer to Problem 23.32QP

The balanced equation for the given reaction can be written as,

General Chemistry - Standalone book (MindTap Course List), Chapter 23, Problem 23.32QP , additional homework tip  1

Explanation of Solution

General Chemistry - Standalone book (MindTap Course List), Chapter 23, Problem 23.32QP , additional homework tip  2

General Chemistry - Standalone book (MindTap Course List), Chapter 23, Problem 23.32QP , additional homework tip  3

General Chemistry - Standalone book (MindTap Course List), Chapter 23, Problem 23.32QP , additional homework tip  4

Reduction:    MnO4  →  MnO2

Balance O:   MnO4 + 2H2O  →  MnO2 + 4OH

Balance charge:   MnO4 + 2H2O + 3e  →  MnO2 + 4OH

Add half-reactions:

General Chemistry - Standalone book (MindTap Course List), Chapter 23, Problem 23.32QP , additional homework tip  5

Therefore, the complete equation for the given reaction can be given as,

General Chemistry - Standalone book (MindTap Course List), Chapter 23, Problem 23.32QP , additional homework tip  6

Conclusion

The balanced equation for the given reaction was written.

(c)

Interpretation Introduction

Interpretation:

For the given reactions, the equation has to be completed and balanced.

Concept Introduction:

Bromination of alkene happens without any catalyst in carbon tetrachloride.  The bromine atom adds across the double bond reducing the double bond to a single bond.

(c)

Expert Solution
Check Mark

Answer to Problem 23.32QP

The balanced equation for the given reaction can be written as,

General Chemistry - Standalone book (MindTap Course List), Chapter 23, Problem 23.32QP , additional homework tip  7

Explanation of Solution

Bromination across the double bond.

General Chemistry - Standalone book (MindTap Course List), Chapter 23, Problem 23.32QP , additional homework tip  8

Conclusion

The given bromination reaction was completed and the product was written with balanced equation.

(d)

Interpretation Introduction

Interpretation:

For the given reactions, the equation has to be completed and balanced.

Concept Introduction:

Nitration of aromatic compound happens when concentrated nitric acid and sulphuric acid is added to it.  The position of nitro group substitution depends upon the position of the already substituted group present in it.

(d)

Expert Solution
Check Mark

Answer to Problem 23.32QP

The balanced equation for the given reaction can be written as,

General Chemistry - Standalone book (MindTap Course List), Chapter 23, Problem 23.32QP , additional homework tip  9

Explanation of Solution

Nitration of ethylbenzene takes place in presence of nitric acid and sulphuric acid.  As ethyl is a para directing group, the nitro group is substituted in the para position.  By considering this, the complete reaction can be given as,

General Chemistry - Standalone book (MindTap Course List), Chapter 23, Problem 23.32QP , additional homework tip  10

Conclusion

The given nitration reaction product was drawn and the equation was completed.

(e)

Interpretation Introduction

Interpretation:

For the given reactions, the equation has to be completed and balanced.

Concept Introduction:

Chlorination of aromatic compound happens in presence of catalyst.  Usually this does not occur in absence of catalyst.  The position of chlorination in the aromatic ring depends upon the group already substituted in the ring.

(e)

Expert Solution
Check Mark

Answer to Problem 23.32QP

The balanced equation for the given reaction can be written as,

General Chemistry - Standalone book (MindTap Course List), Chapter 23, Problem 23.32QP , additional homework tip  11

Explanation of Solution

Chlorination of benzene takes place in presence of catalyst with chlorine.  By considering this, the complete reaction can be given as,

General Chemistry - Standalone book (MindTap Course List), Chapter 23, Problem 23.32QP , additional homework tip  12

Conclusion

The given chlorination reaction was completed and the product was written with balanced equation.

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Chapter 23 Solutions

General Chemistry - Standalone book (MindTap Course List)

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