Chapter 18.4, Problem 47PP

Interpretation Introduction

(a)

Interpretation:

The formula equation for the hydrolysis of given salt is to be written and classified as acidic, basic or neutral.

Concept introduction:

On adding a salt in water, it dissociates into its ions due to polarity of water.

Cationic part of salt is clustered by hydroxyl ions and anionic part is clustered by hydrogen ions due to electrostatic force of attractions.

Answer to Problem 47PP

Formula equation in ionic form:

$N{H}_4{}^{+}+H_{2}O\to H_3{O}^{+}+N{H}_3$

The solution is acidic.

Explanation of Solution

To write net ionic equation, spectator ion is removed from the equation.

Net ionic equation:

$N{H}_4{}^{+}+H_{2}O\to H_3{O}^{+}+N{H}_3$

Interpretation Introduction

(b)

Interpretation:

The formula equation for the hydrolysis of given salt is to be written and classified as acidic, basic or neutral.

Concept introduction:

On adding a salt in water, it dissociates into its ions due to polarity of water.

Cationic part of salt is clustered by hydroxyl ions and anionic part is clustered by hydrogen ions due to electrostatic force of attractions.

Answer to Problem 47PP

Formula equation in ionic form:

$S{O}_4{}^{2-}+H_{2}O\rightleftharpoons HS{O}_4{}^{-}+O{H}^{-}$

The solution is basic.

Explanation of Solution

To write net ionic equation, spectator ion is removed from the equation.

Net ionic equation:

$S{O}_4{}^{2-}+H_{2}O\rightleftharpoons HS{O}_4{}^{-}+O{H}^{-}$

Interpretation Introduction

(c)

Interpretation:

The formula equation for the hydrolysis of given salt is to be written and classified as acidic, basic or neutral.

Concept introduction:

On adding a salt in water, it dissociates into its ions due to polarity of water.

Cationic part of salt is clustered by hydroxyl ions and anionic part is clustered by hydrogen ions due to electrostatic force of attractions.

Answer to Problem 47PP

Formula equation in ionic form:

$C{H}_{3}CO{O}^{-}+H_{2}O\to O{H}^{-}+C{H}_{3}COOH$

The solution is basic

Explanation of Solution

To write net ionic equation, spectator ion is removed from the equation.

Net ionic equation:

$C{H}_{3}CO{O}^{-}+H_{2}O\to O{H}^{-}+C{H}_{3}COOH$

Interpretation Introduction

(d)

Interpretation:

The formula equation and the net ionic equation for the hydrolysis of given salt is to be written and classified as acidic, basic or neutral.

Concept introduction:

On adding a salt in water, it dissociates into its ions due to polarity of water.

Cationic part of salt is clustered by hydroxyl ions and anionic part is clustered by hydrogen ions due to electrostatic force of attractions.

Answer to Problem 47PP

Net ionic equation:

$C{O}_3{}^{2-}+H_{2}O\to HC{O}_3{}^{-}+O{H}^{-}$

The solution is basic.

Explanation of Solution

To write net ionic equation, spectator ion is removed from the equation.

Net ionic equation:

$C{O}_3{}^{2-}+H_{2}O\to HC{O}_3{}^{-}+O{H}^{-}$