Chapter 9.2, Problem 9.2.1SR

(a)

Interpretation Introduction

Interpretation:

The given set of compounds should be identified that whether they are soluble or insoluble in water.

Concept introduction:

Solubility guidelines:

• Compound containing alkali metal cations and ammonium ion are soluble in water.
• Compound contains nitrate, acetate and chlorate ions are soluble in water.
• Except ${\text{Ag}}^{\text{+}}$ , ${\text{Hg}}^{\text{2+}}$ and ${\text{pb}}^{\text{2+}}$ ions, compounds containing chloride, bromide and iodide ions are soluble in water.
• Except ${\text{Ag}}^{\text{+}}$ , ${\text{Hg}}^{\text{2+}}$, ${\text{Pb}}^{\text{2+}}$, ${\text{Ca}}^{\text{2+}}$, ${\text{Sr}}^{\text{2+}}$ and ${\text{Ba}}^{\text{2+}}$ ions, compounds containing sulfate ion are soluble.
• Except ${\text{Li}}^{\text{+}}$ , ${\text{Na}}^{\text{+}}$ , ${\text{K}}^{\text{+}}$ ${\text{Rb}}^{\text{+}}$, ${\text{Cs}}^{\text{+}}$ and ${\text{NH}}_{\text{4}}{}^{\text{+}}$ ions, compounds containing carbonate, phosphate, chromate and sulfite ions are insoluble in water.
• Except ${\text{Li}}^{\text{+}}$ , ${\text{Na}}^{\text{+}}$ , ${\text{K}}^{\text{+}}$ , ${\text{Rb}}^{\text{+}}$, ${\text{Cs}}^{\text{+}}$ and ${\text{Ba}}^{\text{2+}}$ ions, compounds containing hydroxide ions are insoluble in water.

Answer to Problem 9.2.1SR

${\text{Ba(C}}_{\text{2}}{\text{H}}_{\text{3}}{\text{O}}_{\text{2}}{\text{)}}_{\text{2}}$ is soluble in water.

Explanation of Solution

The given compound ${\text{Ba(C}}_{\text{2}}{\text{H}}_{\text{3}}{\text{O}}_{\text{2}}{\text{)}}_{\text{2}}$ contains $B{a}^{2+}$ ions together with acetate ions which makes the compound soluble in water.

(b)

Interpretation Introduction

Interpretation:

The given set of compounds should be identified that whether they are soluble or insoluble in water.

Concept introduction:

Solubility guideline:

• Compound containing alkali metal cations and ammonium ion are soluble in water.
• Compound contains nitrate, acetate and chlorate ions are soluble in water.
• Except ${\text{Ag}}^{\text{+}}$ , ${\text{Hg}}^{\text{2+}}$ and ${\text{pb}}^{\text{2+}}$ ions, compounds containing chloride, bromide and iodide ions are soluble in water.
• Except ${\text{Ag}}^{\text{+}}$ , ${\text{Hg}}^{\text{2+}}$, ${\text{Pb}}^{\text{2+}}$, ${\text{Ca}}^{\text{2+}}$, ${\text{Sr}}^{\text{2+}}$ and ${\text{Ba}}^{\text{2+}}$ ions, compounds containing sulfate ion are soluble.
• Except ${\text{Li}}^{\text{+}}$ , ${\text{Na}}^{\text{+}}$ , ${\text{K}}^{\text{+}}$ ${\text{Rb}}^{\text{+}}$, ${\text{Cs}}^{\text{+}}$ and ${\text{NH}}_{\text{4}}{}^{\text{+}}$ ions, compounds containing carbonate, phosphate, chromate and sulfite ions are insoluble in water.
• Except ${\text{Li}}^{\text{+}}$ , ${\text{Na}}^{\text{+}}$ , ${\text{K}}^{\text{+}}$ , ${\text{Rb}}^{\text{+}}$, ${\text{Cs}}^{\text{+}}$ and ${\text{Ba}}^{\text{2+}}$ ions, compounds containing hydroxide ions are insoluble in water.

Answer to Problem 9.2.1SR

The given compound $N{a}_{2}S$ is soluble in water.

Explanation of Solution

According to the above solubility guideline the $N{a}_{2}S$ compound contains alkali earth metal $\left(Na\right)$ which makes the compound soluble in water.

(c)

Interpretation Introduction

Interpretation:

The given set of compounds should be identified that whether they are soluble or insoluble in water.

Concept introduction:

Solubility guideline:

• Compound containing alkali metal cations and ammonium ion are soluble in water.
• Compound contains nitrate, acetate and chlorate ions are soluble in water.
• Except ${\text{Ag}}^{\text{+}}$ , ${\text{Hg}}^{\text{2+}}$ and ${\text{pb}}^{\text{2+}}$ ions, compounds containing chloride, bromide and iodide ions are soluble in water.
• Except ${\text{Ag}}^{\text{+}}$ , ${\text{Hg}}^{\text{2+}}$, ${\text{Pb}}^{\text{2+}}$, ${\text{Ca}}^{\text{2+}}$, ${\text{Sr}}^{\text{2+}}$ and ${\text{Ba}}^{\text{2+}}$ ions, compounds containing sulfate ion are soluble.
• Except ${\text{Li}}^{\text{+}}$ , ${\text{Na}}^{\text{+}}$ , ${\text{K}}^{\text{+}}$ ${\text{Rb}}^{\text{+}}$, ${\text{Cs}}^{\text{+}}$ and ${\text{NH}}_{\text{4}}{}^{\text{+}}$ ions, compounds containing carbonate, phosphate, chromate and sulfite ions are insoluble in water.
• Except ${\text{Li}}^{\text{+}}$ , ${\text{Na}}^{\text{+}}$ , ${\text{K}}^{\text{+}}$ , ${\text{Rb}}^{\text{+}}$, ${\text{Cs}}^{\text{+}}$ and ${\text{Ba}}^{\text{2+}}$ ions, compounds containing hydroxide ions are insoluble in water.

Answer to Problem 9.2.1SR

The given compound $CaC{O}_{\text{3}}$ is insoluble in water.

Explanation of Solution

The given ${\text{CaCO}}_{\text{3}}$ compound contains $C{a}^{2+}$ ions together with the Carbonate ions which makes the given compound insoluble in water.

(d)

Interpretation Introduction

Interpretation:

The given set of compounds should be identified that whether they are soluble or insoluble in water.

Concept introduction:

Solubility guideline:

• Compound containing alkali metal cations and ammonium ion are soluble in water.
• Compound contains nitrate, acetate and chlorate ions are soluble in water.
• Except ${\text{Ag}}^{\text{+}}$ , ${\text{Hg}}^{\text{2+}}$ and ${\text{pb}}^{\text{2+}}$ ions, compounds containing chloride, bromide and iodide ions are soluble in water.
• Except ${\text{Ag}}^{\text{+}}$ , ${\text{Hg}}^{\text{2+}}$, ${\text{Pb}}^{\text{2+}}$, ${\text{Ca}}^{\text{2+}}$, ${\text{Sr}}^{\text{2+}}$ and ${\text{Ba}}^{\text{2+}}$ ions, compounds containing sulfate ion are soluble.
• Except ${\text{Li}}^{\text{+}}$ , ${\text{Na}}^{\text{+}}$ , ${\text{K}}^{\text{+}}$ ${\text{Rb}}^{\text{+}}$, ${\text{Cs}}^{\text{+}}$ and ${\text{NH}}_{\text{4}}{}^{\text{+}}$ ions, compounds containing carbonate, phosphate, chromate and sulfite ions are insoluble in water.
• Except ${\text{Li}}^{\text{+}}$ , ${\text{Na}}^{\text{+}}$ , ${\text{K}}^{\text{+}}$ , ${\text{Rb}}^{\text{+}}$, ${\text{Cs}}^{\text{+}}$ and ${\text{Ba}}^{\text{2+}}$ ions, compounds containing hydroxide ions are insoluble in water.

Answer to Problem 9.2.1SR

The given compound ${\text{CuBr}}_{\text{2}}$ is soluble in water.

Explanation of Solution

The given ${\text{CuBr}}_{\text{2}}$ compound contains $C{u}^{2+}$ ions with Bromide ions which is soluble in water since it contains bromide ions with it.

(e)

Interpretation Introduction

Interpretation:

The given set of compounds should be identified that whether they are soluble or insoluble in water.

Concept introduction:

Solubility guideline:

• Compound containing alkali metal cations and ammonium ion are soluble in water.
• Compound contains nitrate, acetate and chlorate ions are soluble in water.
• Except ${\text{Ag}}^{\text{+}}$ , ${\text{Hg}}^{\text{2+}}$ and ${\text{pb}}^{\text{2+}}$ ions, compounds containing chloride, bromide and iodide ions are soluble in water.
• Except ${\text{Ag}}^{\text{+}}$ , ${\text{Hg}}^{\text{2+}}$, ${\text{Pb}}^{\text{2+}}$, ${\text{Ca}}^{\text{2+}}$, ${\text{Sr}}^{\text{2+}}$ and ${\text{Ba}}^{\text{2+}}$ ions, compounds containing sulfate ion are soluble.
• Except ${\text{Li}}^{\text{+}}$ , ${\text{Na}}^{\text{+}}$ , ${\text{K}}^{\text{+}}$ ${\text{Rb}}^{\text{+}}$, ${\text{Cs}}^{\text{+}}$ and ${\text{NH}}_{\text{4}}{}^{\text{+}}$ ions, compounds containing carbonate, phosphate, chromate and sulfite ions are insoluble in water.
• Except ${\text{Li}}^{\text{+}}$ , ${\text{Na}}^{\text{+}}$ , ${\text{K}}^{\text{+}}$ , ${\text{Rb}}^{\text{+}}$, ${\text{Cs}}^{\text{+}}$ and ${\text{Ba}}^{\text{2+}}$ ions, compounds containing hydroxide ions are insoluble in water.

Answer to Problem 9.2.1SR

${\text{Hg}}_{\text{2}}{\text{Cl}}_{\text{2}}$ is insoluble in water.

Explanation of Solution

According to the above solubility guideline option $H{g}_{2}C{l}_{\text{2}}$ compound containing $H{g}^{1+}$ ions and Chloride ions which $H{g}^{1+}$ present with Chloride ions makes the compound soluble in water.