Chapter 9, Problem 129A

(a)

Interpretation Introduction

Interpretation: The electron dot structure for the substance is to be drawn.

Concept Introduction: If the compound's molecular formula is known, electron dot structures or the Lewis dot formulas can be drawn. The type of bond and the location of the atoms in a molecule that are related to one another are determined by the electron dot structure.

Answer to Problem 129A

The electron dot structure of is given as follows:

  

Explanation of Solution

The bonding atoms, the number of bonds in the molecule, and the lone pairs still present in the bonding atoms are all described by an electron dot structure.

The given substance is

The electron dot structure of is given as follows:

  

There is a single bond between and

The valency of is seven.

Since one electron is involved in bonding, the remaining six valence electrons form three lone pairs.

(b)

Interpretation Introduction

Interpretation: The electron dot structure for the substance is to be drawn.

Concept Introduction: If the compound's molecular formula is known, electron dot structures or the Lewis dot formulas can be drawn. The type of bond and the location of the atoms in a molecule that are related to one another are determined by the electron dot structure.

Answer to Problem 129A

The electron dot structure of is given as follows:

  

Explanation of Solution

The bonding atoms, the number of bonds in the molecule, and the lone pairs still present in the bonding atoms are all described by an electron dot structure.

The given substance is

The electron dot structure of is given as follows:

  

There is a triple bond between and

Since three electrons in C is involved in bonding, the remaining valence electrons form one lone pair.

(c)

Interpretation Introduction

Interpretation: The electron dot structure for the substance is to be drawn.

Concept Introduction: If the compound's molecular formula is known, electron dot structures or the Lewis dot formulas can be drawn. The type of bond and the location of the atoms in a molecule that are related to one another are determined by the electron dot structure.

Answer to Problem 129A

The electron dot structure of is given as follows:

  

Explanation of Solution

The bonding atoms, the number of bonds in the molecule, and the lone pairs still present in the bonding atoms are all described by an electron dot structure.

The given substance is

The electron dot structure of is given as follows:

  

There is a double bond between and

The valency of is four

Since four electron is involved in bonding, there is no lone pairs of electrons in carbon.

There are two lone pairs of electrons in oxygen.

(d)

Interpretation Introduction

Interpretation: The electron dot structure for the substance is to be drawn.

Concept Introduction: If the compound's molecular formula is known, electron dot structures or the Lewis dot formulas can be drawn. The type of bond and the location of the atoms in a molecule that are related to one another are determined by the electron dot structure.

Answer to Problem 129A

The electron dot structure of is given as follows:

  

Explanation of Solution

The bonding atoms, the number of bonds in the molecule, and the lone pairs still present in the bonding atoms are all described by an electron dot structure.

The given substance is

The electron dot structure of is given as follows:

  

There is a single bond between and

The valency of is five.

Since three electrons of nitrogen is involved in bonding, the remaining two valence electrons form one lone pair.

(e)

Interpretation Introduction

Interpretation: The electron dot structure for the substance is to be drawn.

Concept Introduction: If the compound's molecular formula is known, electron dot structures or the Lewis dot formulas can be drawn. The type of bond and the location of the atoms in a molecule that are related to one another are determined by the electron dot structure.

Answer to Problem 129A

The electron dot structure of is given as follows:

  

Explanation of Solution

The bonding atoms, the number of bonds in the molecule, and the lone pairs still present in the bonding atoms are all described by an electron dot structure.

The given substance is

The electron dot structure of is given as follows:

  

There is a single bond between and

The valency of is four.

Since four electrons are involved in bonding, there is no lone pair in carbon.

(f)

Interpretation Introduction

Interpretation: The electron dot structure for the substance is to be drawn.

Concept Introduction: If the compound's molecular formula is known, electron dot structures or the Lewis dot formulas can be drawn. The type of bond and the location of the atoms in a molecule that are related to one another are determined by the electron dot structure.

Answer to Problem 129A

The electron dot structure of is given as follows:

  

Explanation of Solution

The bonding atoms, the number of bonds in the molecule, and the lone pairs still present in the bonding atoms are all described by an electron dot structure.

The given substance is

The electron dot structure of is given as follows:

  

There is a single bond between and

The valency of is six

Since two electron is involved in bonding, the remaining four valence electrons form two lone pairs.

(g)

Interpretation Introduction

Interpretation: The electron dot structure for the substance is to be drawn.

Concept Introduction: If the compound's molecular formula is known, electron dot structures or the Lewis dot formulas can be drawn. The type of bond and the location of the atoms in a molecule that are related to one another are determined by the electron dot structure.

Answer to Problem 129A

The electron dot structure of is given as follows:

  

Explanation of Solution

The bonding atoms, the number of bonds in the molecule, and the lone pairs still present in the bonding atoms are all described by an electron dot structure.

The given substance is

The electron dot structure of is given as follows:

  

There is a single bond between and

The valency of is four.

Since four electrons are involved in bonding, there is no lone pairs of electron in carbon.