Chemical Principles: The Quest for Insight
Chemical Principles: The Quest for Insight
7th Edition
ISBN: 9781464183959
Author: Peter Atkins, Loretta Jones, Leroy Laverman
Publisher: W. H. Freeman
Question
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Chapter 11, Problem 11.8E

(a)

Interpretation Introduction

Interpretation:

The systematic name of the compound CH3CH2CH=CHCH3 has to be given and the geometrical isomers (if any) have to be identified.

Concept Introduction:

Alkenes:  The simplest unsaturated hydrocarbon with a double bond is called as alkene.  The name of alkane ends with “-ene”.

Rules for naming compound:

  1. 1) The carbon atoms in the longest chain have to be counted.
  2. 2) The substituents and multiple bonds have to be identified and counted and the suffix “-ene” is added.
  3. 3) The backbone carbon atoms have to be numbered by assigning the lowest number from the starting end that contains the double bond.

Alkynes:  Alkynes are hydrocarbons with one carbon-carbon triple bond.  The name of the alkyne ends with “-yne”.

Rules for naming compound:

  1. 1) The carbon atoms in the longest chain have to be counted.
  2. 2) The substituents and multiple bonds have to be identified and counted and the suffix “-yne” is added.
  3. 3) The backbone carbon atoms have to be numbered by assigning the lowest number from the starting end that contains the double bond.

Geometrical isomers:  In geometrical isomers, atoms have different arrangements on either side of a double bond above or below the ring of a cycloalkane or cycloalkane.  If the atoms are present on the same side of the double bond, then it is cis-isomer and if they are present on the opposite side of the double bond, then it is trans-isomer.

(a)

Expert Solution
Check Mark

Answer to Problem 11.8E

The systematic name of the compound CH3CH2CH=CHCH3 is 2-pentene.

Cis-2-pentene and trans-2-pentene are geometrical isomers of 2-pentene.

Explanation of Solution

The given compound is,

Chemical Principles: The Quest for Insight, Chapter 11, Problem 11.8E , additional homework tip  1

The compound is identified as alkene.  The parent chain of the compound is pentane and a double bond is seen at the carbon second position.  Hence, the systematic name of the compound is 2-pentene.

Cis-2-pentene and trans-2-pentene are geometrical isomers of 2-pentene.

Chemical Principles: The Quest for Insight, Chapter 11, Problem 11.8E , additional homework tip  2

(b)

Interpretation Introduction

Interpretation:

The systematic name of the compound CH3C(CH3)=CHCH3 has to be given and the geometrical isomers (if any) have to be identified.

Concept Introduction:

Refer to part (a).

(b)

Expert Solution
Check Mark

Answer to Problem 11.8E

The systematic name of the compound CH3C(CH3)=CHCH3 is 2-methyl-2-butene.

The geometrical isomers are not possible in 2-methyl-2-butene.

Explanation of Solution

The given compound is,

Chemical Principles: The Quest for Insight, Chapter 11, Problem 11.8E , additional homework tip  3

The compound is identified as alkene.  The parent chain of the compound is butane.  One methyl group is present in the carbon second position and a double bond is seen at the carbon second position.  Hence, the systematic name of the compound is 2-methyl-2-butene.

No geometrical isomers are possible in 2-methyl-2-butene.

(c)

Interpretation Introduction

Interpretation:

The systematic name of the compound (CH3)2C=CHCH2CH3 has to be given and the geometrical isomers (if any) have to be identified.

Concept Introduction:

Refer to part (a).

(c)

Expert Solution
Check Mark

Answer to Problem 11.8E

The systematic name of the compound (CH3)2C=CHCH2CH3 is 2-methyl-2-pentene.

No geometrical isomers are possible in 2-methyl-2-pentene.

Explanation of Solution

The given compound is,

Chemical Principles: The Quest for Insight, Chapter 11, Problem 11.8E , additional homework tip  4

The compound is identified as alkene.  The parent chain of the compound is pentane.  One methyl group is present in the carbon second position and a double bond is seen at the carbon second position.  Hence, the systematic name of the compound is 2-methyl-2-pentene.

No geometrical isomers are possible in 2-methyl-2-pentene.

(d)

Interpretation Introduction

Interpretation:

The systematic name of the compound HCCCH2CH(CH2CH2CH3)CH3 has to be given and the geometrical isomers (if any) have to be identified.

Concept Introduction:

Refer to part (a).

(d)

Expert Solution
Check Mark

Answer to Problem 11.8E

The systematic name of the compound HCCCH2CH(CH2CH2CH3)CH3 is 4-methyl-1-heptyne.

No geometrical isomers are possible in 4-methyl-1-heptyne.

Explanation of Solution

The given compound is,

Chemical Principles: The Quest for Insight, Chapter 11, Problem 11.8E , additional homework tip  5

The compound is identified as alkyne.  The parent chain of the compound is heptane.  One triple bond is present in carbon first position and one methyl substituent is present in carbon fourth position.  Hence, the systematic name of the compound is 4-methyl-1-heptyne.

Geometrical isomers are not possible because triple bond has only one substituent each.

(e)

Interpretation Introduction

Interpretation:

The systematic name of the compound CH3CH2CCCH(CH3)CH2CH3 has to be given and the geometrical isomers (if any) have to be identified.

Concept Introduction:

Refer to part (a).

(e)

Expert Solution
Check Mark

Answer to Problem 11.8E

The systematic name of the compound CH3CH2CCCH(CH3)CH2CH3 is 5-methyl-3-heptyne.

No geometrical isomers are possible in 5-methyl-3-heptyne.

Explanation of Solution

The given compound is,

Chemical Principles: The Quest for Insight, Chapter 11, Problem 11.8E , additional homework tip  6

The compound is identified as alkyne.  The parent chain of the compound is heptane.  One triple bond is present in carbon third position and one methyl substituent is present in carbon fifth position.  Hence, the systematic name of the compound is 5-methyl-3-heptyne.

Geometrical isomers are not possible because triple bond has only one substituent each.

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Chapter 11 Solutions

Chemical Principles: The Quest for Insight

Ch. 11 - Prob. 11A.6ASTCh. 11 - Prob. 11A.6BSTCh. 11 - Prob. 11A.1ECh. 11 - Prob. 11A.2ECh. 11 - Prob. 11A.3ECh. 11 - Prob. 11A.4ECh. 11 - Prob. 11A.5ECh. 11 - Prob. 11A.6ECh. 11 - Prob. 11A.7ECh. 11 - Prob. 11A.8ECh. 11 - Prob. 11A.9ECh. 11 - Prob. 11A.10ECh. 11 - Prob. 11A.11ECh. 11 - Prob. 11A.12ECh. 11 - Prob. 11A.13ECh. 11 - Prob. 11A.14ECh. 11 - Prob. 11A.15ECh. 11 - Prob. 11A.16ECh. 11 - Prob. 11A.17ECh. 11 - Prob. 11A.18ECh. 11 - Prob. 11A.19ECh. 11 - Prob. 11A.20ECh. 11 - Prob. 11A.21ECh. 11 - Prob. 11A.22ECh. 11 - Prob. 11A.23ECh. 11 - Prob. 11A.24ECh. 11 - Prob. 11A.25ECh. 11 - Prob. 11A.26ECh. 11 - Prob. 11A.27ECh. 11 - Prob. 11A.28ECh. 11 - Prob. 11B.1ASTCh. 11 - Prob. 11B.1BSTCh. 11 - Prob. 11B.1ECh. 11 - Prob. 11B.3ECh. 11 - Prob. 11B.4ECh. 11 - Prob. 11B.5ECh. 11 - Prob. 11B.6ECh. 11 - Prob. 11B.7ECh. 11 - Prob. 11B.8ECh. 11 - Prob. 11C.1ASTCh. 11 - Prob. 11C.1BSTCh. 11 - Prob. 11C.1ECh. 11 - Prob. 11C.2ECh. 11 - Prob. 11C.3ECh. 11 - Prob. 11C.4ECh. 11 - Prob. 11C.5ECh. 11 - Prob. 11C.6ECh. 11 - Prob. 11C.7ECh. 11 - Prob. 11C.8ECh. 11 - Prob. 11C.9ECh. 11 - Prob. 11C.10ECh. 11 - Prob. 11C.11ECh. 11 - Prob. 11C.12ECh. 11 - Prob. 11C.13ECh. 11 - Prob. 11C.14ECh. 11 - Prob. 11D.1ASTCh. 11 - Prob. 11D.1BSTCh. 11 - Prob. 11D.2ASTCh. 11 - Prob. 11D.2BSTCh. 11 - Prob. 11D.3ASTCh. 11 - Prob. 11D.3BSTCh. 11 - Prob. 11D.1ECh. 11 - Prob. 11D.2ECh. 11 - Prob. 11D.3ECh. 11 - Prob. 11D.4ECh. 11 - Prob. 11D.5ECh. 11 - Prob. 11D.6ECh. 11 - Prob. 11D.7ECh. 11 - Prob. 11D.8ECh. 11 - Prob. 11D.9ECh. 11 - Prob. 11D.10ECh. 11 - Prob. 11D.11ECh. 11 - Prob. 11D.12ECh. 11 - Prob. 11D.13ECh. 11 - Prob. 11D.14ECh. 11 - Prob. 11D.15ECh. 11 - Prob. 11D.16ECh. 11 - Prob. 11D.17ECh. 11 - Prob. 11D.18ECh. 11 - Prob. 11D.19ECh. 11 - Prob. 11D.20ECh. 11 - Prob. 11D.21ECh. 11 - Prob. 11D.22ECh. 11 - Prob. 11D.23ECh. 11 - Prob. 11D.24ECh. 11 - Prob. 11D.25ECh. 11 - Prob. 11D.26ECh. 11 - Prob. 11D.27ECh. 11 - Prob. 11D.28ECh. 11 - Prob. 11D.29ECh. 11 - Prob. 11D.30ECh. 11 - Prob. 11D.31ECh. 11 - Prob. 11D.32ECh. 11 - Prob. 11D.33ECh. 11 - Prob. 11D.34ECh. 11 - Prob. 11D.35ECh. 11 - Prob. 11D.36ECh. 11 - Prob. 11E.1ASTCh. 11 - Prob. 11E.1BSTCh. 11 - Prob. 11E.2ASTCh. 11 - Prob. 11E.2BSTCh. 11 - Prob. 11E.1ECh. 11 - Prob. 11E.3ECh. 11 - Prob. 11E.4ECh. 11 - Prob. 11E.5ECh. 11 - Prob. 11E.7ECh. 11 - Prob. 11E.8ECh. 11 - Prob. 11E.9ECh. 11 - Prob. 11E.10ECh. 11 - Prob. 11E.11ECh. 11 - Prob. 11E.12ECh. 11 - Prob. 11E.13ECh. 11 - Prob. 11E.14ECh. 11 - Prob. 11E.15ECh. 11 - Prob. 11E.16ECh. 11 - Prob. 11E.17ECh. 11 - Prob. 11E.18ECh. 11 - Prob. 11E.19ECh. 11 - Prob. 11E.20ECh. 11 - Prob. 11E.21ECh. 11 - Prob. 11E.22ECh. 11 - Prob. 11E.23ECh. 11 - Prob. 11E.24ECh. 11 - Prob. 11E.25ECh. 11 - Prob. 11E.26ECh. 11 - Prob. 11E.27ECh. 11 - Prob. 11E.28ECh. 11 - Prob. 11.1ECh. 11 - Prob. 11.2ECh. 11 - Prob. 11.3ECh. 11 - Prob. 11.4ECh. 11 - Prob. 11.5ECh. 11 - Prob. 11.6ECh. 11 - Prob. 11.7ECh. 11 - Prob. 11.8ECh. 11 - Prob. 11.9ECh. 11 - Prob. 11.10ECh. 11 - Prob. 11.11ECh. 11 - Prob. 11.12ECh. 11 - Prob. 11.13ECh. 11 - Prob. 11.14ECh. 11 - Prob. 11.15ECh. 11 - Prob. 11.16ECh. 11 - Prob. 11.17ECh. 11 - Prob. 11.18ECh. 11 - Prob. 11.19ECh. 11 - Prob. 11.20ECh. 11 - Prob. 11.21ECh. 11 - Prob. 11.23ECh. 11 - Prob. 11.24ECh. 11 - Prob. 11.25ECh. 11 - Prob. 11.26ECh. 11 - Prob. 11.27ECh. 11 - Prob. 11.28ECh. 11 - Prob. 11.29ECh. 11 - Prob. 11.30ECh. 11 - Prob. 11.31ECh. 11 - Prob. 11.32ECh. 11 - Prob. 11.33ECh. 11 - Prob. 11.34ECh. 11 - Prob. 11.35ECh. 11 - Prob. 11.36ECh. 11 - Prob. 11.37ECh. 11 - Prob. 11.38ECh. 11 - Prob. 11.41ECh. 11 - Prob. 11.42ECh. 11 - Prob. 11.43ECh. 11 - Prob. 11.44ECh. 11 - Prob. 11.45ECh. 11 - Prob. 11.47ECh. 11 - Prob. 11.49ECh. 11 - Prob. 11.50ECh. 11 - Prob. 11.51ECh. 11 - Prob. 11.52ECh. 11 - Prob. 11.53ECh. 11 - Prob. 11.54ECh. 11 - Prob. 11.55ECh. 11 - Prob. 11.56ECh. 11 - Prob. 11.57E
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