Chapter U4.90, Problem 5E

(b)

Interpretation Introduction

Interpretation:

The solution which will combine and form a precipitate of compounds needs to be determined.

Concept Introduction:

When two soluble salts are combined to form insoluble salt is known as precipitation reaction.

Explanation of Solution

When phosphoric acid combines with ferric chloride then it will form a precipitate of ferric phosphate.

The reaction is shown below:

  ${\text{H}}_{\text{3}}{\text{PO}}_{\text{4}}\text{+}{\text{FeCl}}_{\text{3}}\to {\text{FePO}}_{\text{4}}\downarrow \text{+}\text{3HCl}$

(c)

Interpretation Introduction

Interpretation:

The solution which will combine and form a precipitate of compounds needs to be determined.

Concept Introduction:

When two soluble salts are combined to form insoluble salt is known as precipitation reaction.

Explanation of Solution

When mercury nitrate combines with hydrochloric acid it will form a precipitate of mercuric chloride.

The reaction is shown below:

  ${\text{Hg}}_{\text{2}}{{\text{(NO}}_{\text{3}}\text{)}}_{\text{2}}\text{ + 4 HCl }\to {\text{ 2 HgCl}}_{\text{2}}\downarrow {\text{+ 2 H}}_{\text{2}}{\text{O + 2 NO}}_{\text{2}}$

(d)

Interpretation Introduction

Interpretation:

The solution which will combine and form a precipitate of compounds needs to be determined.

Concept Introduction:

When two soluble salts are combined to form insoluble salt is known as precipitation reaction.

Explanation of Solution

When silver nitrate combines with potassium chloride then it will form a precipitate of silver chloride.

The reaction is shown below:

  ${\text{AgNO}}_{\text{3}}\text{+}\text{KCl}\to \text{AgCl}\downarrow \text{+}{\text{KNO}}_{\text{3}}$