The given statement concerning aromatic hydrocarbon are soluble in water has to be identified as true or false. Concept Introduction: Organic compounds are represented shortly by the molecular formula and structural formula. Each and every compound has its own molecular formula. Compounds can have same molecular formula but not same structural formula. Aromatic hydrocarbons are cyclic chain unsaturated hydrocarbons. They are nonpolar molecules. Water is a polar molecule. Therefore, aromatic hydrocarbons do not get solubilized in water. In other words, aromatic hydrocarbons are insoluble in water. Regarding density, aromatic hydrocarbons have density lower than water. When aromatic hydrocarbons are mixed with water, two layers are formed which is a result of insolubility. Aromatic hydrocarbonds are present on top of water layer which is due to lesser density. Aromatic hydrocarbons have more boiling point compared to noncyclic alkenes with the same number of carbon atoms. This is due to the more rigid and more symmetrical structures that occur in cyclic systems. Benzene is the lowest aromatic hydrocarbon that has physical state as liquid at room temperature.

Question

1) Calculate the longest and shortest wavelengths in the Lyman and Paschen series. 2) Calculate the ionization energy of He* and L2+ ions in their ground states. 3) Calculate the kinetic energy of the electron emitted upon irradiation of a H-atom in ground state by a 50-nm radiation.

Answer 1

Question

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 2, Problem 2.122EP

(a)

Interpretation Introduction

Interpretation:

The given statement concerning aromatic hydrocarbon are soluble in water has to be identified as true or false.

Concept Introduction:

Organic compounds are represented shortly by the molecular formula and structural formula. Each and every compound has its own molecular formula. Compounds can have same molecular formula but not same structural formula.

Aromatic hydrocarbons are cyclic chain unsaturated hydrocarbons. They are nonpolar molecules. Water is a polar molecule. Therefore, aromatic hydrocarbons do not get solubilized in water. In other words, aromatic hydrocarbons are insoluble in water.

Regarding density, aromatic hydrocarbons have density lower than water. When aromatic hydrocarbons are mixed with water, two layers are formed which is a result of insolubility. Aromatic hydrocarbonds are present on top of water layer which is due to lesser density.

Aromatic hydrocarbons have more boiling point compared to noncyclic alkenes with the same number of carbon atoms. This is due to the more rigid and more symmetrical structures that occur in cyclic systems. Benzene is the lowest aromatic hydrocarbon that has physical state as liquid at room temperature.

(b)

Interpretation Introduction

Interpretation:

The given statement concerning aromatic hydrocarbon has to be identified as true or false.

Concept Introduction:

Organic compounds are represented shortly by the molecular formula and structural formula. Each and every compound has its own molecular formula. Compounds can have same molecular formula but not same structural formula.

Aromatic hydrocarbons are cyclic chain unsaturated hydrocarbons. They are nonpolar molecules. Water is a polar molecule. Therefore, aromatic hydrocarbons do not get solubilized in water. In other words, aromatic hydrocarbons are insoluble in water.

Regarding density, aromatic hydrocarbons have density lower than water. When aromatic hydrocarbons are mixed with water, two layers are formed which is a result of insolubility. Aromatic hydrocarbonds are present on top of water layer which is due to lesser density.

Aromatic hydrocarbons have more boiling point compared to noncyclic alkenes with the same number of carbon atoms. This is due to the more rigid and more symmetrical structures that occur in cyclic systems. Benzene is the lowest aromatic hydrocarbon that has physical state as liquid at room temperature.

(c)

Interpretation Introduction

Interpretation:

The given statement concerning aromatic hydrocarbon has to be identified as true or false.

Concept Introduction:

Organic compounds are represented shortly by the molecular formula and structural formula. Each and every compound has its own molecular formula. Compounds can have same molecular formula but not same structural formula.

Aromatic hydrocarbons are cyclic chain unsaturated hydrocarbons. They are nonpolar molecules. Water is a polar molecule. Therefore, aromatic hydrocarbons do not get solubilized in water. In other words, aromatic hydrocarbons are insoluble in water.

Regarding density, aromatic hydrocarbons have density lower than water. When aromatic hydrocarbons are mixed with water, two layers are formed which is a result of insolubility. Aromatic hydrocarbonds are present on top of water layer which is due to lesser density.

Aromatic hydrocarbons have more boiling point compared to noncyclic alkenes with the same number of carbon atoms. This is due to the more rigid and more symmetrical structures that occur in cyclic systems. Benzene is the lowest aromatic hydrocarbon that has physical state as liquid at room temperature.

(d)

Interpretation Introduction

Interpretation:

The given statement concerning aromatic hydrocarbon has to be identified as true or false.

Concept Introduction:

Organic compounds are represented shortly by the molecular formula and structural formula. Each and every compound has its own molecular formula. Compounds can have same molecular formula but not same structural formula.

Aromatic hydrocarbons are cyclic chain unsaturated hydrocarbons. They are nonpolar molecules. Water is a polar molecule. Therefore, aromatic hydrocarbons do not get solubilized in water. In other words, aromatic hydrocarbons are insoluble in water.

Regarding density, aromatic hydrocarbons have density lower than water. When aromatic hydrocarbons are mixed with water, two layers are formed which is a result of insolubility. Aromatic hydrocarbonds are present on top of water layer which is due to lesser density.

Aromatic hydrocarbons have more boiling point compared to noncyclic alkenes with the same number of carbon atoms. This is due to the more rigid and more symmetrical structures that occur in cyclic systems. Benzene is the lowest aromatic hydrocarbon that has physical state as liquid at room temperature.

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1) Calculate the longest and shortest wavelengths in the Lyman and Paschen series. 2) Calculate the ionization energy of He* and L2+ ions in their ground states. 3) Calculate the kinetic energy of the electron emitted upon irradiation of a H-atom in ground state by a 50-nm radiation.

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Answer 2

Question

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 2, Problem 2.122EP

(a)

Interpretation Introduction

Interpretation:

The given statement concerning aromatic hydrocarbon are soluble in water has to be identified as true or false.

Concept Introduction:

Organic compounds are represented shortly by the molecular formula and structural formula. Each and every compound has its own molecular formula. Compounds can have same molecular formula but not same structural formula.

Aromatic hydrocarbons are cyclic chain unsaturated hydrocarbons. They are nonpolar molecules. Water is a polar molecule. Therefore, aromatic hydrocarbons do not get solubilized in water. In other words, aromatic hydrocarbons are insoluble in water.

Regarding density, aromatic hydrocarbons have density lower than water. When aromatic hydrocarbons are mixed with water, two layers are formed which is a result of insolubility. Aromatic hydrocarbonds are present on top of water layer which is due to lesser density.

Aromatic hydrocarbons have more boiling point compared to noncyclic alkenes with the same number of carbon atoms. This is due to the more rigid and more symmetrical structures that occur in cyclic systems. Benzene is the lowest aromatic hydrocarbon that has physical state as liquid at room temperature.

(b)

Interpretation Introduction

Interpretation:

The given statement concerning aromatic hydrocarbon has to be identified as true or false.

Concept Introduction:

Organic compounds are represented shortly by the molecular formula and structural formula. Each and every compound has its own molecular formula. Compounds can have same molecular formula but not same structural formula.

Aromatic hydrocarbons are cyclic chain unsaturated hydrocarbons. They are nonpolar molecules. Water is a polar molecule. Therefore, aromatic hydrocarbons do not get solubilized in water. In other words, aromatic hydrocarbons are insoluble in water.

Regarding density, aromatic hydrocarbons have density lower than water. When aromatic hydrocarbons are mixed with water, two layers are formed which is a result of insolubility. Aromatic hydrocarbonds are present on top of water layer which is due to lesser density.

Aromatic hydrocarbons have more boiling point compared to noncyclic alkenes with the same number of carbon atoms. This is due to the more rigid and more symmetrical structures that occur in cyclic systems. Benzene is the lowest aromatic hydrocarbon that has physical state as liquid at room temperature.

(c)

Interpretation Introduction

Interpretation:

The given statement concerning aromatic hydrocarbon has to be identified as true or false.

Concept Introduction:

Organic compounds are represented shortly by the molecular formula and structural formula. Each and every compound has its own molecular formula. Compounds can have same molecular formula but not same structural formula.

Aromatic hydrocarbons are cyclic chain unsaturated hydrocarbons. They are nonpolar molecules. Water is a polar molecule. Therefore, aromatic hydrocarbons do not get solubilized in water. In other words, aromatic hydrocarbons are insoluble in water.

Regarding density, aromatic hydrocarbons have density lower than water. When aromatic hydrocarbons are mixed with water, two layers are formed which is a result of insolubility. Aromatic hydrocarbonds are present on top of water layer which is due to lesser density.

Aromatic hydrocarbons have more boiling point compared to noncyclic alkenes with the same number of carbon atoms. This is due to the more rigid and more symmetrical structures that occur in cyclic systems. Benzene is the lowest aromatic hydrocarbon that has physical state as liquid at room temperature.

(d)

Interpretation Introduction

Interpretation:

The given statement concerning aromatic hydrocarbon has to be identified as true or false.

Concept Introduction:

Organic compounds are represented shortly by the molecular formula and structural formula. Each and every compound has its own molecular formula. Compounds can have same molecular formula but not same structural formula.

Aromatic hydrocarbons are cyclic chain unsaturated hydrocarbons. They are nonpolar molecules. Water is a polar molecule. Therefore, aromatic hydrocarbons do not get solubilized in water. In other words, aromatic hydrocarbons are insoluble in water.

Regarding density, aromatic hydrocarbons have density lower than water. When aromatic hydrocarbons are mixed with water, two layers are formed which is a result of insolubility. Aromatic hydrocarbonds are present on top of water layer which is due to lesser density.

Aromatic hydrocarbons have more boiling point compared to noncyclic alkenes with the same number of carbon atoms. This is due to the more rigid and more symmetrical structures that occur in cyclic systems. Benzene is the lowest aromatic hydrocarbon that has physical state as liquid at room temperature.

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Answer 3

Question

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 2, Problem 2.122EP

(a)

Interpretation Introduction

Interpretation:

The given statement concerning aromatic hydrocarbon are soluble in water has to be identified as true or false.

Concept Introduction:

Organic compounds are represented shortly by the molecular formula and structural formula. Each and every compound has its own molecular formula. Compounds can have same molecular formula but not same structural formula.

Aromatic hydrocarbons are cyclic chain unsaturated hydrocarbons. They are nonpolar molecules. Water is a polar molecule. Therefore, aromatic hydrocarbons do not get solubilized in water. In other words, aromatic hydrocarbons are insoluble in water.

Regarding density, aromatic hydrocarbons have density lower than water. When aromatic hydrocarbons are mixed with water, two layers are formed which is a result of insolubility. Aromatic hydrocarbonds are present on top of water layer which is due to lesser density.

Aromatic hydrocarbons have more boiling point compared to noncyclic alkenes with the same number of carbon atoms. This is due to the more rigid and more symmetrical structures that occur in cyclic systems. Benzene is the lowest aromatic hydrocarbon that has physical state as liquid at room temperature.

(b)

Interpretation Introduction

Interpretation:

The given statement concerning aromatic hydrocarbon has to be identified as true or false.

Concept Introduction:

Organic compounds are represented shortly by the molecular formula and structural formula. Each and every compound has its own molecular formula. Compounds can have same molecular formula but not same structural formula.

Aromatic hydrocarbons are cyclic chain unsaturated hydrocarbons. They are nonpolar molecules. Water is a polar molecule. Therefore, aromatic hydrocarbons do not get solubilized in water. In other words, aromatic hydrocarbons are insoluble in water.

Regarding density, aromatic hydrocarbons have density lower than water. When aromatic hydrocarbons are mixed with water, two layers are formed which is a result of insolubility. Aromatic hydrocarbonds are present on top of water layer which is due to lesser density.

Aromatic hydrocarbons have more boiling point compared to noncyclic alkenes with the same number of carbon atoms. This is due to the more rigid and more symmetrical structures that occur in cyclic systems. Benzene is the lowest aromatic hydrocarbon that has physical state as liquid at room temperature.

(c)

Interpretation Introduction

Interpretation:

The given statement concerning aromatic hydrocarbon has to be identified as true or false.

Concept Introduction:

Organic compounds are represented shortly by the molecular formula and structural formula. Each and every compound has its own molecular formula. Compounds can have same molecular formula but not same structural formula.

Aromatic hydrocarbons are cyclic chain unsaturated hydrocarbons. They are nonpolar molecules. Water is a polar molecule. Therefore, aromatic hydrocarbons do not get solubilized in water. In other words, aromatic hydrocarbons are insoluble in water.

Regarding density, aromatic hydrocarbons have density lower than water. When aromatic hydrocarbons are mixed with water, two layers are formed which is a result of insolubility. Aromatic hydrocarbonds are present on top of water layer which is due to lesser density.

Aromatic hydrocarbons have more boiling point compared to noncyclic alkenes with the same number of carbon atoms. This is due to the more rigid and more symmetrical structures that occur in cyclic systems. Benzene is the lowest aromatic hydrocarbon that has physical state as liquid at room temperature.

(d)

Interpretation Introduction

Interpretation:

The given statement concerning aromatic hydrocarbon has to be identified as true or false.

Concept Introduction:

Organic compounds are represented shortly by the molecular formula and structural formula. Each and every compound has its own molecular formula. Compounds can have same molecular formula but not same structural formula.

Aromatic hydrocarbons are cyclic chain unsaturated hydrocarbons. They are nonpolar molecules. Water is a polar molecule. Therefore, aromatic hydrocarbons do not get solubilized in water. In other words, aromatic hydrocarbons are insoluble in water.

Regarding density, aromatic hydrocarbons have density lower than water. When aromatic hydrocarbons are mixed with water, two layers are formed which is a result of insolubility. Aromatic hydrocarbonds are present on top of water layer which is due to lesser density.

Aromatic hydrocarbons have more boiling point compared to noncyclic alkenes with the same number of carbon atoms. This is due to the more rigid and more symmetrical structures that occur in cyclic systems. Benzene is the lowest aromatic hydrocarbon that has physical state as liquid at room temperature.

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Answer 4

Question

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 2, Problem 2.122EP

(a)

Interpretation Introduction

Interpretation:

The given statement concerning aromatic hydrocarbon are soluble in water has to be identified as true or false.

Concept Introduction:

Organic compounds are represented shortly by the molecular formula and structural formula. Each and every compound has its own molecular formula. Compounds can have same molecular formula but not same structural formula.

Aromatic hydrocarbons are cyclic chain unsaturated hydrocarbons. They are nonpolar molecules. Water is a polar molecule. Therefore, aromatic hydrocarbons do not get solubilized in water. In other words, aromatic hydrocarbons are insoluble in water.

Regarding density, aromatic hydrocarbons have density lower than water. When aromatic hydrocarbons are mixed with water, two layers are formed which is a result of insolubility. Aromatic hydrocarbonds are present on top of water layer which is due to lesser density.

Aromatic hydrocarbons have more boiling point compared to noncyclic alkenes with the same number of carbon atoms. This is due to the more rigid and more symmetrical structures that occur in cyclic systems. Benzene is the lowest aromatic hydrocarbon that has physical state as liquid at room temperature.

(b)

Interpretation Introduction

Interpretation:

The given statement concerning aromatic hydrocarbon has to be identified as true or false.

Concept Introduction:

Organic compounds are represented shortly by the molecular formula and structural formula. Each and every compound has its own molecular formula. Compounds can have same molecular formula but not same structural formula.

Aromatic hydrocarbons are cyclic chain unsaturated hydrocarbons. They are nonpolar molecules. Water is a polar molecule. Therefore, aromatic hydrocarbons do not get solubilized in water. In other words, aromatic hydrocarbons are insoluble in water.

Regarding density, aromatic hydrocarbons have density lower than water. When aromatic hydrocarbons are mixed with water, two layers are formed which is a result of insolubility. Aromatic hydrocarbonds are present on top of water layer which is due to lesser density.

Aromatic hydrocarbons have more boiling point compared to noncyclic alkenes with the same number of carbon atoms. This is due to the more rigid and more symmetrical structures that occur in cyclic systems. Benzene is the lowest aromatic hydrocarbon that has physical state as liquid at room temperature.

(c)

Interpretation Introduction

Interpretation:

The given statement concerning aromatic hydrocarbon has to be identified as true or false.

Concept Introduction:

Organic compounds are represented shortly by the molecular formula and structural formula. Each and every compound has its own molecular formula. Compounds can have same molecular formula but not same structural formula.

Aromatic hydrocarbons are cyclic chain unsaturated hydrocarbons. They are nonpolar molecules. Water is a polar molecule. Therefore, aromatic hydrocarbons do not get solubilized in water. In other words, aromatic hydrocarbons are insoluble in water.

Regarding density, aromatic hydrocarbons have density lower than water. When aromatic hydrocarbons are mixed with water, two layers are formed which is a result of insolubility. Aromatic hydrocarbonds are present on top of water layer which is due to lesser density.

Aromatic hydrocarbons have more boiling point compared to noncyclic alkenes with the same number of carbon atoms. This is due to the more rigid and more symmetrical structures that occur in cyclic systems. Benzene is the lowest aromatic hydrocarbon that has physical state as liquid at room temperature.

(d)

Interpretation Introduction

Interpretation:

The given statement concerning aromatic hydrocarbon has to be identified as true or false.

Concept Introduction:

Organic compounds are represented shortly by the molecular formula and structural formula. Each and every compound has its own molecular formula. Compounds can have same molecular formula but not same structural formula.

Aromatic hydrocarbons are cyclic chain unsaturated hydrocarbons. They are nonpolar molecules. Water is a polar molecule. Therefore, aromatic hydrocarbons do not get solubilized in water. In other words, aromatic hydrocarbons are insoluble in water.

Regarding density, aromatic hydrocarbons have density lower than water. When aromatic hydrocarbons are mixed with water, two layers are formed which is a result of insolubility. Aromatic hydrocarbonds are present on top of water layer which is due to lesser density.

Aromatic hydrocarbons have more boiling point compared to noncyclic alkenes with the same number of carbon atoms. This is due to the more rigid and more symmetrical structures that occur in cyclic systems. Benzene is the lowest aromatic hydrocarbon that has physical state as liquid at room temperature.

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Answer 5

Chapter 2, Problem 2.122EP

(a)

Interpretation Introduction

Interpretation:

The given statement concerning aromatic hydrocarbon are soluble in water has to be identified as true or false.

Concept Introduction:

Organic compounds are represented shortly by the molecular formula and structural formula. Each and every compound has its own molecular formula. Compounds can have same molecular formula but not same structural formula.

Aromatic hydrocarbons are cyclic chain unsaturated hydrocarbons. They are nonpolar molecules. Water is a polar molecule. Therefore, aromatic hydrocarbons do not get solubilized in water. In other words, aromatic hydrocarbons are insoluble in water.

Regarding density, aromatic hydrocarbons have density lower than water. When aromatic hydrocarbons are mixed with water, two layers are formed which is a result of insolubility. Aromatic hydrocarbonds are present on top of water layer which is due to lesser density.

Aromatic hydrocarbons have more boiling point compared to noncyclic alkenes with the same number of carbon atoms. This is due to the more rigid and more symmetrical structures that occur in cyclic systems. Benzene is the lowest aromatic hydrocarbon that has physical state as liquid at room temperature.

(b)

Interpretation Introduction

Interpretation:

The given statement concerning aromatic hydrocarbon has to be identified as true or false.

Concept Introduction:

Organic compounds are represented shortly by the molecular formula and structural formula. Each and every compound has its own molecular formula. Compounds can have same molecular formula but not same structural formula.

Aromatic hydrocarbons are cyclic chain unsaturated hydrocarbons. They are nonpolar molecules. Water is a polar molecule. Therefore, aromatic hydrocarbons do not get solubilized in water. In other words, aromatic hydrocarbons are insoluble in water.

Regarding density, aromatic hydrocarbons have density lower than water. When aromatic hydrocarbons are mixed with water, two layers are formed which is a result of insolubility. Aromatic hydrocarbonds are present on top of water layer which is due to lesser density.

Aromatic hydrocarbons have more boiling point compared to noncyclic alkenes with the same number of carbon atoms. This is due to the more rigid and more symmetrical structures that occur in cyclic systems. Benzene is the lowest aromatic hydrocarbon that has physical state as liquid at room temperature.

(c)

Interpretation Introduction

Interpretation:

The given statement concerning aromatic hydrocarbon has to be identified as true or false.

Concept Introduction:

Organic compounds are represented shortly by the molecular formula and structural formula. Each and every compound has its own molecular formula. Compounds can have same molecular formula but not same structural formula.

Aromatic hydrocarbons are cyclic chain unsaturated hydrocarbons. They are nonpolar molecules. Water is a polar molecule. Therefore, aromatic hydrocarbons do not get solubilized in water. In other words, aromatic hydrocarbons are insoluble in water.

Regarding density, aromatic hydrocarbons have density lower than water. When aromatic hydrocarbons are mixed with water, two layers are formed which is a result of insolubility. Aromatic hydrocarbonds are present on top of water layer which is due to lesser density.

Aromatic hydrocarbons have more boiling point compared to noncyclic alkenes with the same number of carbon atoms. This is due to the more rigid and more symmetrical structures that occur in cyclic systems. Benzene is the lowest aromatic hydrocarbon that has physical state as liquid at room temperature.

(d)

Interpretation Introduction

Interpretation:

The given statement concerning aromatic hydrocarbon has to be identified as true or false.

Concept Introduction:

Organic compounds are represented shortly by the molecular formula and structural formula. Each and every compound has its own molecular formula. Compounds can have same molecular formula but not same structural formula.

Aromatic hydrocarbons are cyclic chain unsaturated hydrocarbons. They are nonpolar molecules. Water is a polar molecule. Therefore, aromatic hydrocarbons do not get solubilized in water. In other words, aromatic hydrocarbons are insoluble in water.

Regarding density, aromatic hydrocarbons have density lower than water. When aromatic hydrocarbons are mixed with water, two layers are formed which is a result of insolubility. Aromatic hydrocarbonds are present on top of water layer which is due to lesser density.

Aromatic hydrocarbons have more boiling point compared to noncyclic alkenes with the same number of carbon atoms. This is due to the more rigid and more symmetrical structures that occur in cyclic systems. Benzene is the lowest aromatic hydrocarbon that has physical state as liquid at room temperature.

Answer 6

Chapter 2, Problem 2.122EP

(a)

Interpretation Introduction

Interpretation:

The given statement concerning aromatic hydrocarbon are soluble in water has to be identified as true or false.

Concept Introduction:

Organic compounds are represented shortly by the molecular formula and structural formula. Each and every compound has its own molecular formula. Compounds can have same molecular formula but not same structural formula.

Aromatic hydrocarbons are cyclic chain unsaturated hydrocarbons. They are nonpolar molecules. Water is a polar molecule. Therefore, aromatic hydrocarbons do not get solubilized in water. In other words, aromatic hydrocarbons are insoluble in water.

Regarding density, aromatic hydrocarbons have density lower than water. When aromatic hydrocarbons are mixed with water, two layers are formed which is a result of insolubility. Aromatic hydrocarbonds are present on top of water layer which is due to lesser density.

Aromatic hydrocarbons have more boiling point compared to noncyclic alkenes with the same number of carbon atoms. This is due to the more rigid and more symmetrical structures that occur in cyclic systems. Benzene is the lowest aromatic hydrocarbon that has physical state as liquid at room temperature.

Answer 7

Chapter 2, Problem 2.122EP

(a)

Interpretation Introduction

Interpretation:

The given statement concerning aromatic hydrocarbon are soluble in water has to be identified as true or false.

Concept Introduction:

Organic compounds are represented shortly by the molecular formula and structural formula. Each and every compound has its own molecular formula. Compounds can have same molecular formula but not same structural formula.

Aromatic hydrocarbons are cyclic chain unsaturated hydrocarbons. They are nonpolar molecules. Water is a polar molecule. Therefore, aromatic hydrocarbons do not get solubilized in water. In other words, aromatic hydrocarbons are insoluble in water.

Regarding density, aromatic hydrocarbons have density lower than water. When aromatic hydrocarbons are mixed with water, two layers are formed which is a result of insolubility. Aromatic hydrocarbonds are present on top of water layer which is due to lesser density.

Aromatic hydrocarbons have more boiling point compared to noncyclic alkenes with the same number of carbon atoms. This is due to the more rigid and more symmetrical structures that occur in cyclic systems. Benzene is the lowest aromatic hydrocarbon that has physical state as liquid at room temperature.

Answer 8

(b)

Interpretation Introduction

Interpretation:

The given statement concerning aromatic hydrocarbon has to be identified as true or false.

Concept Introduction:

Organic compounds are represented shortly by the molecular formula and structural formula. Each and every compound has its own molecular formula. Compounds can have same molecular formula but not same structural formula.

Aromatic hydrocarbons are cyclic chain unsaturated hydrocarbons. They are nonpolar molecules. Water is a polar molecule. Therefore, aromatic hydrocarbons do not get solubilized in water. In other words, aromatic hydrocarbons are insoluble in water.

Regarding density, aromatic hydrocarbons have density lower than water. When aromatic hydrocarbons are mixed with water, two layers are formed which is a result of insolubility. Aromatic hydrocarbonds are present on top of water layer which is due to lesser density.

Aromatic hydrocarbons have more boiling point compared to noncyclic alkenes with the same number of carbon atoms. This is due to the more rigid and more symmetrical structures that occur in cyclic systems. Benzene is the lowest aromatic hydrocarbon that has physical state as liquid at room temperature.

Answer 9

(b)

Interpretation Introduction

Interpretation:

The given statement concerning aromatic hydrocarbon has to be identified as true or false.

Concept Introduction:

Organic compounds are represented shortly by the molecular formula and structural formula. Each and every compound has its own molecular formula. Compounds can have same molecular formula but not same structural formula.

Aromatic hydrocarbons are cyclic chain unsaturated hydrocarbons. They are nonpolar molecules. Water is a polar molecule. Therefore, aromatic hydrocarbons do not get solubilized in water. In other words, aromatic hydrocarbons are insoluble in water.

Regarding density, aromatic hydrocarbons have density lower than water. When aromatic hydrocarbons are mixed with water, two layers are formed which is a result of insolubility. Aromatic hydrocarbonds are present on top of water layer which is due to lesser density.

Aromatic hydrocarbons have more boiling point compared to noncyclic alkenes with the same number of carbon atoms. This is due to the more rigid and more symmetrical structures that occur in cyclic systems. Benzene is the lowest aromatic hydrocarbon that has physical state as liquid at room temperature.

Answer 10

(c)

Interpretation Introduction

Interpretation:

The given statement concerning aromatic hydrocarbon has to be identified as true or false.

Concept Introduction:

Organic compounds are represented shortly by the molecular formula and structural formula. Each and every compound has its own molecular formula. Compounds can have same molecular formula but not same structural formula.

Aromatic hydrocarbons are cyclic chain unsaturated hydrocarbons. They are nonpolar molecules. Water is a polar molecule. Therefore, aromatic hydrocarbons do not get solubilized in water. In other words, aromatic hydrocarbons are insoluble in water.

Regarding density, aromatic hydrocarbons have density lower than water. When aromatic hydrocarbons are mixed with water, two layers are formed which is a result of insolubility. Aromatic hydrocarbonds are present on top of water layer which is due to lesser density.

Aromatic hydrocarbons have more boiling point compared to noncyclic alkenes with the same number of carbon atoms. This is due to the more rigid and more symmetrical structures that occur in cyclic systems. Benzene is the lowest aromatic hydrocarbon that has physical state as liquid at room temperature.

Answer 11

(c)

Interpretation Introduction

Interpretation:

The given statement concerning aromatic hydrocarbon has to be identified as true or false.

Concept Introduction:

Organic compounds are represented shortly by the molecular formula and structural formula. Each and every compound has its own molecular formula. Compounds can have same molecular formula but not same structural formula.

Aromatic hydrocarbons are cyclic chain unsaturated hydrocarbons. They are nonpolar molecules. Water is a polar molecule. Therefore, aromatic hydrocarbons do not get solubilized in water. In other words, aromatic hydrocarbons are insoluble in water.

Regarding density, aromatic hydrocarbons have density lower than water. When aromatic hydrocarbons are mixed with water, two layers are formed which is a result of insolubility. Aromatic hydrocarbonds are present on top of water layer which is due to lesser density.

Aromatic hydrocarbons have more boiling point compared to noncyclic alkenes with the same number of carbon atoms. This is due to the more rigid and more symmetrical structures that occur in cyclic systems. Benzene is the lowest aromatic hydrocarbon that has physical state as liquid at room temperature.

Answer 12

(d)

Interpretation Introduction

Interpretation:

The given statement concerning aromatic hydrocarbon has to be identified as true or false.

Concept Introduction:

Organic compounds are represented shortly by the molecular formula and structural formula. Each and every compound has its own molecular formula. Compounds can have same molecular formula but not same structural formula.

Aromatic hydrocarbons are cyclic chain unsaturated hydrocarbons. They are nonpolar molecules. Water is a polar molecule. Therefore, aromatic hydrocarbons do not get solubilized in water. In other words, aromatic hydrocarbons are insoluble in water.

Regarding density, aromatic hydrocarbons have density lower than water. When aromatic hydrocarbons are mixed with water, two layers are formed which is a result of insolubility. Aromatic hydrocarbonds are present on top of water layer which is due to lesser density.

Aromatic hydrocarbons have more boiling point compared to noncyclic alkenes with the same number of carbon atoms. This is due to the more rigid and more symmetrical structures that occur in cyclic systems. Benzene is the lowest aromatic hydrocarbon that has physical state as liquid at room temperature.

Answer 13

(d)

Interpretation Introduction

Interpretation:

The given statement concerning aromatic hydrocarbon has to be identified as true or false.

Concept Introduction:

Organic compounds are represented shortly by the molecular formula and structural formula. Each and every compound has its own molecular formula. Compounds can have same molecular formula but not same structural formula.

Aromatic hydrocarbons are cyclic chain unsaturated hydrocarbons. They are nonpolar molecules. Water is a polar molecule. Therefore, aromatic hydrocarbons do not get solubilized in water. In other words, aromatic hydrocarbons are insoluble in water.

Regarding density, aromatic hydrocarbons have density lower than water. When aromatic hydrocarbons are mixed with water, two layers are formed which is a result of insolubility. Aromatic hydrocarbonds are present on top of water layer which is due to lesser density.

Aromatic hydrocarbons have more boiling point compared to noncyclic alkenes with the same number of carbon atoms. This is due to the more rigid and more symmetrical structures that occur in cyclic systems. Benzene is the lowest aromatic hydrocarbon that has physical state as liquid at room temperature.

Answer 14

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Answer 15

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Answer 16

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Answer 17

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Answer 18

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Answer 19

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Answer 20

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Answer 21

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Answer 22

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Answer 23

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Answer 24

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Answer 25

Ch. 2.1 - Prob. 1QQ Ch. 2.1 - Prob. 2QQ Ch. 2.1 - Prob. 3QQ Ch. 2.2 - Prob. 1QQ Ch. 2.2 - Prob. 2QQ Ch. 2.2 - Prob. 3QQ Ch. 2.2 - Prob. 4QQ Ch. 2.3 - Prob. 1QQ Ch. 2.3 - Prob. 2QQ Ch. 2.3 - Prob. 3QQ

Solution Summary: The author explains that organic compounds are represented by the molecular formula and structural formula. Aromatic hydrocarbons are nonpolar molecules and are insoluble in water.

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Chapter 2 Solutions