The meaning of aromatic hydrocarbons ; justification for benzene exhibiting resonance; bond angles in benzene and the description of the bonding in benzene; and the reason for the difference in the delocalization of π electrons in benzene compared to the localized π electrons of alkenes and alkynes are to be stated. Concept introduction: The cyclic unsaturated hydrocarbon that exhibits alternate double and single bond are called as aromatic hydrocarbons. All the carbon atoms and C − C bonds are equivalent in the benzene ring. To determine: The meaning of aromatic hydrocarbons; justification for benzene exhibiting resonance; bond angles in benzene and the description of the bonding in benzene; and the reason for the difference in the delocalization of π electrons in benzene compared to the localized π electrons of alkenes and alkynes.

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Answer 1

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Definition Definition Molecules that have multiple bonds between their carbon atoms. Alkenes are hydrocarbons with a double bond between two adjacent carbon atoms (R 2 C=CR 2 ), whereas alkynes are hydrocarbons with a triple bond between two adjacent carbon atoms R-C=C-R . These two groups are known as unsaturated hydrocarbons. They have fewer hydrogen atoms when compared with alkanes with same number of carbon atoms. The general molecular formula for an unsaturated hydrocarbon can be represented as C n H 2n +2 .

Chapter 21, Problem 3RQ

Interpretation Introduction

Interpretation: The meaning of aromatic hydrocarbons; justification for benzene exhibiting resonance; bond angles in benzene and the description of the bonding in benzene; and the reason for the difference in the delocalization of π electrons in benzene compared to the localized π electrons of alkenes and alkynes are to be stated.

Concept introduction: The cyclic unsaturated hydrocarbon that exhibits alternate double and single bond are called as aromatic hydrocarbons.

All the carbon atoms and C−C bonds are equivalent in the benzene ring.

To determine: The meaning of aromatic hydrocarbons; justification for benzene exhibiting resonance; bond angles in benzene and the description of the bonding in benzene; and the reason for the difference in the delocalization of π electrons in benzene compared to the localized π electrons of alkenes and alkynes.

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Identify and provide an explanation of the differences between homogeneous and heterogeneous sampling in the context of sampling methods.

Г C-RSA CHROMATOPAC CH=1 DATA 1: @CHRM1.C00 ATTEN=10 SPEED= 10.0 0.0 b.092 0.797 1.088 1.813 C-RSA CHROMATOPAC CH=1 Report No. =13 ** CALCULATION REPORT ** DATA=1: @CHRM1.000 11/03/05 08:09:52 CH PKNO TIME 1 2 0.797 3 1.088 4 1.813 AREA 1508566 4625442 2180060 HEIGHT 207739 701206 V 287554 V MK IDNO CONC NAME 18.1447 55.6339 26.2213 TOTAL 8314067 1196500 100 C-R8A CHROMATOPAC CH=1 DATA 1: @CHRM1.C00 ATTEN=10 SPEED= 10.0 0. 0 087 337. 0.841 1.150 C-R8A CHROMATOPAC CH=1 Report No. =14 DATA=1: @CHRM1.000 11/03/05 08:12:40 ** CALCULATION REPORT ** CH PKNO TIME AREA 1 3 0.841 1099933 41.15 4039778 HEIGHT MK IDNO 170372 649997¯¯¯ CONC NAME 21.4007 78.5993 TOTAL 5139711 820369 100 3 C-R8A CHROMATOPAC CH=1 DATA 1: @CHRM1.C00 ATTEN=10 SPEED= 10.0 0.100 0:652 5.856 3 1.165 C-RSA CHROMATOPAC CH-1 Report No. =15 DATA=1: @CHRM1.000 11/03/05 08:15:26 ** CALCULATION REPORT ** CH PKNO TIME AREA HEIGHT MK IDNO CONC NAME 1 3 3 0.856 4 1.165 TOTAL 1253386 4838738 175481 708024 V 20.5739 79.4261 6092124…

Draw the product of the reaction shown below. Ignore small byproducts that would evaporate please.

Answer 2

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Definition Definition Molecules that have multiple bonds between their carbon atoms. Alkenes are hydrocarbons with a double bond between two adjacent carbon atoms (R 2 C=CR 2 ), whereas alkynes are hydrocarbons with a triple bond between two adjacent carbon atoms R-C=C-R . These two groups are known as unsaturated hydrocarbons. They have fewer hydrogen atoms when compared with alkanes with same number of carbon atoms. The general molecular formula for an unsaturated hydrocarbon can be represented as C n H 2n +2 .

Chapter 21, Problem 3RQ

Interpretation Introduction

Interpretation: The meaning of aromatic hydrocarbons; justification for benzene exhibiting resonance; bond angles in benzene and the description of the bonding in benzene; and the reason for the difference in the delocalization of π electrons in benzene compared to the localized π electrons of alkenes and alkynes are to be stated.

Concept introduction: The cyclic unsaturated hydrocarbon that exhibits alternate double and single bond are called as aromatic hydrocarbons.

All the carbon atoms and C−C bonds are equivalent in the benzene ring.

To determine: The meaning of aromatic hydrocarbons; justification for benzene exhibiting resonance; bond angles in benzene and the description of the bonding in benzene; and the reason for the difference in the delocalization of π electrons in benzene compared to the localized π electrons of alkenes and alkynes.

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Answer 3

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Definition Definition Molecules that have multiple bonds between their carbon atoms. Alkenes are hydrocarbons with a double bond between two adjacent carbon atoms (R 2 C=CR 2 ), whereas alkynes are hydrocarbons with a triple bond between two adjacent carbon atoms R-C=C-R . These two groups are known as unsaturated hydrocarbons. They have fewer hydrogen atoms when compared with alkanes with same number of carbon atoms. The general molecular formula for an unsaturated hydrocarbon can be represented as C n H 2n +2 .

Chapter 21, Problem 3RQ

Interpretation Introduction

Interpretation: The meaning of aromatic hydrocarbons; justification for benzene exhibiting resonance; bond angles in benzene and the description of the bonding in benzene; and the reason for the difference in the delocalization of π electrons in benzene compared to the localized π electrons of alkenes and alkynes are to be stated.

Concept introduction: The cyclic unsaturated hydrocarbon that exhibits alternate double and single bond are called as aromatic hydrocarbons.

All the carbon atoms and C−C bonds are equivalent in the benzene ring.

To determine: The meaning of aromatic hydrocarbons; justification for benzene exhibiting resonance; bond angles in benzene and the description of the bonding in benzene; and the reason for the difference in the delocalization of π electrons in benzene compared to the localized π electrons of alkenes and alkynes.

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Check out a sample textbook solution

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Answer 4

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Definition Definition Molecules that have multiple bonds between their carbon atoms. Alkenes are hydrocarbons with a double bond between two adjacent carbon atoms (R 2 C=CR 2 ), whereas alkynes are hydrocarbons with a triple bond between two adjacent carbon atoms R-C=C-R . These two groups are known as unsaturated hydrocarbons. They have fewer hydrogen atoms when compared with alkanes with same number of carbon atoms. The general molecular formula for an unsaturated hydrocarbon can be represented as C n H 2n +2 .

Chapter 21, Problem 3RQ

Interpretation Introduction