Chapter 6, Problem 66E

Interpretation Introduction

Interpretation:

The table is to be completed by writing the chemical formulas for each of the compounds. The name of each compound is to be stated with the help of Latin system nomenclature.

Concept introduction:

Binary compounds are defined as those ionic compounds that contain metal ions connected to nonmetal ions. The overall charge of such compounds is neutral because the oppositely charged metal cations and nonmetal anions are bonded to each other.

In the chemical formula of binary compounds, the cation is present before the anion.

According to the Latin system of nomenclature, the compounds are named by adding suffix-ous or –ic to the Latin name of the metal ion.

Answer to Problem 66E

The complete table is shown below.

IONS	cyanide ion	sulfite ion	permanganate ion
mercuric ion	$\text{Hg}{\left(\text{CN}\right)}_{\text{2}}$ mercuric cyanide	${\text{HgSO}}_3$ mercuric sulfite	$\text{Hg}{\left({\text{MnO}}_{\text{4}}\right)}_{\text{2}}$ mercuric permanganate
ferric ion	$\text{Fe}{\left(\text{CN}\right)}_{\text{3}}$ ferric cyanide	$\text{Fe}{\left({\text{SO}}_{\text{3}}\right)}_{\text{3}}$ ferric sulfite	$\text{Fe}{\left({\text{MnO}}_4\right)}_{\text{3}}$ Ferric permanganate
stannic ion	$\text{Sn}{\left(\text{CN}\right)}_{\text{4}}$ stannic cyanide	$\text{Sn}{\left({\text{SO}}_{\text{3}}\right)}_{\text{2}}$ stannic sulfite	$\text{Sn}{\left({\text{MnO}}_{\text{4}}\right)}_{\text{4}}$ stannic permanganate

Explanation of Solution

In the Latin system of nomenclature, the lower charge ion uses an –ous suffix and the ion with higher charge uses an –ic suffix to their Latin name.

The name of the compound that is formed by the combination of mercuric ion and sulfite ion is mercuric sulfite. It contains positively charged mercuric ion, ${\text{Hg}}^{2+}$ and negatively charged sulfite ion, ${\text{SO}}_3^{2-}$. The charge on mercuric ion is $2+$ and the charge on sulfite ion is $2-$. The $2+$ charge of mercuric ion is neutralized by $2-$ charge of sulfite ion. Therefore, the chemical formula of mercuric sulfite is ${\text{HgSO}}_3$.

The name of the compound that is formed by the combination of mercuric ion and permanganate ion is mercuric permanganate. It contains positively charged mercuric ion, ${\text{Hg}}^{2+}$ and negatively charged permanganate ion, ${\text{MnO}}_4^{-}$. The charge on mercuric ion is $2+$ and the charge on permanganate ion is $1-$. The $2+$ charge of mercuric ion is neutralized by two permanganate ions. Therefore, the chemical formula of mercuric permanganate is $\text{Hg}{\left({\text{MnO}}_{\text{4}}\right)}_{\text{2}}$.

The name of the compound that is formed by the combination of ferric ion and cyanide ion is ferric cyanide. It contains positively charged ferric ion, ${\text{Fe}}^{3+}$ and negatively charged cyanide ion, ${\text{CN}}^{-}$. The charge on ferric ion is $3+$ and the charge on cyanide ion is $1-$. The $3+$ charge of ferric ion is neutralized by three cyanide ions. Therefore, the chemical formula of ferric cyanide is $\text{Fe}{\left(\text{CN}\right)}_{\text{3}}$.

The name of the compound that is formed by the combination of ferric ion and sulfite ion is ferric sulfite. It contains positively charged ferric ion, ${\text{Fe}}^{3+}$ and negatively charged sulfite ion, ${\text{SO}}_3^{2-}$. The charge on ferric ion is $3+$ and the charge on sulfite ion is $2-$. The $3+$ charge of ferric ion is neutralized by three sulfite ions and $2-$ charge of sulfite ion is neutralized by two ferric ions. Therefore, the chemical formula of ferric sulfite is $\text{Fe}{\left({\text{SO}}_{\text{3}}\right)}_{\text{3}}$.

The name of the compound that is formed by the combination of ferric ion and permanganate ion is ferric permanganate. It contains positively charged ferric ion, ${\text{Fe}}^{3+}$ and negatively charged permanganate ion, ${\text{MnO}}_4^{-}$. The charge on ferric ion is $3+$ and the charge on permanganate ion is $1-$. The $3+$ charge of ferric ion is neutralized by three permanganate ions. Therefore, the chemical formula of ferric permanganate is $\text{Fe}{\left({\text{MnO}}_4\right)}_{\text{3}}$.

The name of the compound that is formed by the combination of stannic ion and cyanide ion is stannic cyanide. It contains positively charged stannic ion, ${\text{Sn}}^{4+}$ and negatively charged cyanide ion, ${\text{CN}}^{-}$. The charge on stannic ion is $4+$ and the charge on cyanide ion is $1-$. The $4+$ charge of stannic ion is neutralized by four cyanide ions. Therefore, the chemical formula of stannic cyanide is $\text{Sn}{\left(\text{CN}\right)}_{\text{4}}$.

The name of the compound that is formed by the combination of stannic ion and sulfite ion is stannic sulfite. It contains positively charged stannic ion, ${\text{Sn}}^{4+}$ and negatively charged sulfite ion, ${\text{SO}}_3^{2-}$. The charge on stannic ion is $4+$ and the charge on sulfite ion is $2-$. Therefore, the chemical formula of stannic sulfite is $\text{Sn}{\left({\text{SO}}_{\text{3}}\right)}_{\text{2}}$.

The name of the compound that is formed by the combination of stannic ion and permanganate ion is stannic permanganate. It contains positively charged stannic ion, ${\text{Sn}}^{4+}$ and negatively charged permanganate ion, ${\text{MnO}}_4^{-}$. The charge on stannic ion is $4+$ and the charge on permanganate ion is $1-$. The $4+$ charge of stannic ion is neutralized by four permanganate ions. Therefore, the chemical formula of stannic permanganate is $\text{Sn}{\left({\text{MnO}}_{\text{4}}\right)}_{\text{4}}$.

Conclusion

The complete table is shown below.

IONS	cyanide ion	sulfite ion	permanganate ion
mercuric ion	$\text{Hg}{\left(\text{CN}\right)}_{\text{2}}$ mercuric cyanide	${\text{HgSO}}_3$ mercuric sulfite	$\text{Hg}{\left({\text{MnO}}_{\text{4}}\right)}_{\text{2}}$ mercuric permanganate
ferric ion	$\text{Fe}{\left(\text{CN}\right)}_{\text{3}}$ ferric cyanide	$\text{Fe}{\left({\text{SO}}_{\text{3}}\right)}_{\text{3}}$ ferric sulfite	$\text{Fe}{\left({\text{MnO}}_4\right)}_{\text{3}}$ Ferric permanganate
stannic ion	$\text{Sn}{\left(\text{CN}\right)}_{\text{4}}$ stannic cyanide	$\text{Sn}{\left({\text{SO}}_{\text{3}}\right)}_{\text{2}}$ stannic sulfite	$\text{Sn}{\left({\text{MnO}}_{\text{4}}\right)}_{\text{4}}$ stannic permanganate