Chapter 4, Problem 50A

(a)

Interpretation Introduction

Interpretation: The correct formula of the compound has to be provided.

Concept introduction: Binary ionic compound can be defined as a compound consists of two elements, one present as a cation and other one as an anion.

Rules for the nomenclature:

• The element farthest to the left in the periodic table is generally named first. If both elements are within the same group, the element closer to the bottom of the column is named first.
• The second element is considered as monatomic anion in an ionic compound. The suffix  -ide  attached to the elemental name of the monatomic anion.

Answer to Problem 50A

The correct formula of “a” is ${\text{SO}}_{\text{2}}.$

Explanation of Solution

A multiplicative prefix given prior to the name of element without any spaces and hyphens between the prefix and the name. Multiplicative prefix indicates how many atoms of an element are present in a molecule. Below is the table for the multiplicative prefixes.

 

No of atoms	1	2	3	4	5	6	7	8	9	10
Multiplicative prfix	mono	di	tri	tetra	penta	hexa	hepta	octa	nona	deca

Sulfur dioxide name indicates two oxygen atoms are there so correct formula is ${\text{SO}}_{\text{2}}$ .

(b)

Interpretation Introduction

Interpretation: The correct formula of the compound has to be provided.

Concept introduction: Binary ionic compound can be defined as a compound consists of two elements, one present as a cation and other one as an anion.

Rules for the nomenclature:

• The element farthest to the left in the periodic table is generally named first. If both elements are within the same group, the element closer to the bottom of the column is named first.
• The second element is considered as monatomic anion in an ionic compound. The suffix  -ide  attached to the elemental name of the monatomic anion.

Answer to Problem 50A

The correct formula of “b” is ${\text{N}}_{\text{2}}\text{O}.$

Explanation of Solution

A multiplicative prefix given prior to the name of element without any spaces and hyphens between the prefix and the name. Multiplicative prefix indicates how many atoms of an element are present in a molecule. Below is the table for the multiplicative prefixes.

 

No of atoms	1	2	3	4	5	6	7	8	9	10
Multiplicative prfix	mono	di	tri	tetra	penta	hexa	hepta	octa	nona	deca

Dinitrogen monoxide indicates two nitrogen atoms are there so correct formula is ${\text{N}}_{\text{2}}\text{O}$ .

(c)

Interpretation Introduction

Interpretation: The correct formula of the compound has to be provided.

Concept introduction: Binary ionic compound can be defined as a compound consists of two elements, one present as a cation and other one as an anion.

Rules for the nomenclature:

• The element farthest to the left in the periodic table is generally named first. If both elements are within the same group, the element closer to the bottom of the column is named first.
• The second element is considered as monatomic anion in an ionic compound. The suffix  -ide  attached to the elemental name of the monatomic anion.

Answer to Problem 50A

The correct formula of “c” is ${\text{XeF}}_{\text{4}}.$

Explanation of Solution

A multiplicative prefix given prior to the name of element without any spaces and hyphens between the prefix and the name. Multiplicative prefix indicates how many atoms of an element are present in a molecule. Below is the table for the multiplicative prefixes.

 

No of atoms	1	2	3	4	5	6	7	8	9	10
Multiplicative prfix	mono	di	tri	tetra	penta	hexa	hepta	octa	nona	deca

Xenon tetrafluoride indicates four fluorine atoms are there so correct formula is ${\text{XeF}}_{\text{4}}$ .

(d)

Interpretation Introduction

Interpretation: The correct formula of the compound has to be provided.

Concept introduction: Binary ionic compound can be defined as a compound consists of two elements, one present as a cation and other one as an anion.

Rules for the nomenclature:

• The element farthest to the left in the periodic table is generally named first. If both elements are within the same group, the element closer to the bottom of the column is named first.
• The second element is considered as monatomic anion in an ionic compound. The suffix  -ide  attached to the elemental name of the monatomic anion.

Answer to Problem 50A

The correct formula of “d” is ${\text{P}}_{\text{4}}{\text{O}}_{\text{10}}.$

Explanation of Solution

A multiplicative prefix given prior to the name of element without any spaces and hyphens between the prefix and the name. Multiplicative prefix indicates how many atoms of an element are present in a molecule. Below is the table for the multiplicative prefixes.

 

No of atoms	1	2	3	4	5	6	7	8	9	10
Multiplicative prfix	mono	di	tri	tetra	penta	hexa	hepta	octa	nona	deca

Tetraphosphorous decoxide indicates there are four phosphorous atoms and ten oxygen atoms and hence the correct formula is ${\text{P}}_{\text{4}}{\text{O}}_{\text{10}}$ .

(e)

Interpretation Introduction

Interpretation: The correct formula of the compound has to be provided.

Concept introduction: Binary ionic compound can be defined as a compound consists of two elements, one present as a cation and other one as an anion.

Rules for the nomenclature:

• The element farthest to the left in the periodic table is generally named first. If both elements are within the same group, the element closer to the bottom of the column is named first.
• The second element is considered as monatomic anion in an ionic compound. The suffix  -ide  attached to the elemental name of the monatomic anion.

Answer to Problem 50A

The correct formula of “e” is ${\text{PCl}}_{\text{5}}.$

Explanation of Solution

A multiplicative prefix given prior to the name of element without any spaces and hyphens between the prefix and the name. Multiplicative prefix indicates how many atoms of an element are present in a molecule. Below is the table for the multiplicative prefixes.

 

No of atoms	1	2	3	4	5	6	7	8	9	10
Multiplicative prfix	mono	di	tri	tetra	penta	hexa	hepta	octa	nona	deca

Phosphorous pentachloride indicates five chlorine atoms are there so correct formula is ${\text{PCl}}_{\text{5}}.$

(f)

Interpretation Introduction

Interpretation: The correct formula of the compound has to be provided.

Concept introduction: Binary ionic compound can be defined as a compound consists of two elements, one present as a cation and other one as an anion.

Rules for the nomenclature:

• The element farthest to the left in the periodic table is generally named first. If both elements are within the same group, the element closer to the bottom of the column is named first.
• The second element is considered as monatomic anion in an ionic compound. The suffix  -ide  attached to the elemental name of the monatomic anion.

Answer to Problem 50A

The correct formula of “f” is ${\text{SF}}_{\text{6}}.$

Explanation of Solution

A multiplicative prefix given prior to the name of element without any spaces and hyphens between the prefix and the name. Multiplicative prefix indicates how many atoms of an element are present in a molecule. Below is the table for the multiplicative prefixes.

 

No of atoms	1	2	3	4	5	6	7	8	9	10
Multiplicative prfix	mono	di	tri	tetra	penta	hexa	hepta	octa	nona	deca

Sulfur hexafluoride indicates six fluorine atoms are there so correct formula is ${\text{SF}}_{\text{6}}$ .

(g)

Interpretation Introduction

Interpretation: The correct formula of the compound has to be provided.

Concept introduction: Binary ionic compound can be defined as a compound consists of two elements, one present as a cation and other one as an anion.

Rules for the nomenclature:

• The element farthest to the left in the periodic table is generally named first. If both elements are within the same group, the element closer to the bottom of the column is named first.
• The second element is considered as monatomic anion in an ionic compound. The suffix  -ide  attached to the elemental name of the monatomic anion.

Answer to Problem 50A

The correct formula of “g” is ${\text{NO}}_{\text{2}}.$

Explanation of Solution

A multiplicative prefix given prior to the name of element without any spaces and hyphens between the prefix and the name. Multiplicative prefix indicates how many atoms of an element are present in a molecule. Below is the table for the multiplicative prefixes.

 

No of atoms	1	2	3	4	5	6	7	8	9	10
Multiplicative prfix	mono	di	tri	tetra	penta	hexa	hepta	octa	nona	deca

Nitrogen dioxide indicates two oxygen atoms are there so correct formula is ${\text{NO}}_{\text{2}}$ .