Chapter 14, Problem 2PE

(a)

Interpretation Introduction

Interpretation:

Whether ${\text{Ba}}_3{\left({\text{PO}}_4\right)}_2$ is water soluble or not has to be determined.

Concept Introduction:

Below mentioned are solubility rules that are required to govern whether compounds are soluble or insoluble in water.

1. Common compounds of group 1A are water soluble.

2. Common compounds of ${\text{NH}}_4^{+}$ and all nitrates, acetates and perchlorates are water soluble. All chlorides, bromides and iodides are soluble, except for those of ${\text{Ag}}^{+}$, ${\text{Pb}}^{2+}$, ${\text{Cu}}^{+}$ and ${\text{Hg}}_2^{2+}$.

3. Common fluorides, except for ${\text{PbF}}_{\text{2}}$ are water soluble. Also, all sulfates are soluble, except for ${\text{CaSO}}_{\text{4}}$, ${\text{SrSO}}_{\text{4}}$, ${\text{BaSO}}_{\text{4}}$, ${\text{Ag}}_{\text{2}}{\text{SO}}_{\text{4}}$ and ${\text{PbSO}}_{\text{4}}$.

4. All hydroxides are insoluble, except for $\text{Ca}{\left(\text{OH}\right)}_{\text{2}}$, $\text{Sr}{\left(\text{OH}\right)}_{\text{2}}$, $\text{Ba}{\left(\text{OH}\right)}_{\text{2}}$ and hydroxides of group 1A.

5. All phosphates and carbonates, except for group 1A and ${\text{NH}}_4^{+}$ are insoluble.

6. All sulfides, except for group 1A, 2A and ${\text{NH}}_4^{+}$ are insoluble.

(b)

Interpretation Introduction

Interpretation:

Whether $\text{Cu}{\left({\text{NO}}_3\right)}_2$ is water soluble or not has to be determined.

Concept Introduction:

Refer to part (a).

(c)

Interpretation Introduction

Interpretation:

Whether $\text{Fe}{\left(\text{OH}\right)}_3$ is water soluble or not has to be determined.

Concept Introduction:

Refer to part (a).

(d)

Interpretation Introduction

Interpretation:

Whether ${\text{NH}}_4{\text{C}}_2{\text{H}}_3{\text{O}}_2$ is water soluble or not has to be determined.

Concept Introduction:

Refer to part (a).

(e)

Interpretation Introduction

Interpretation:

Whether $\text{MgO}$ is water soluble or not has to be determined.

Concept Introduction:

Refer to part (a).

(f)

Interpretation Introduction

Interpretation:

Whether ${\text{AgNO}}_{\text{3}}$ is water soluble or not has to be determined.

Concept Introduction:

Refer to part (a).