Chapter 25.4, Problem 25.4P

(a)

Interpretation Introduction

To determine: The equations corresponding to the reaction of sodium stearate with ${\text{Ca}}^{2+}$

Interpretation: The equations corresponding to the reaction of sodium stearate with ${\text{Ca}}^{2+}$ are to be stated.

Concept introduction: The presence of carboxylic group at the end of long hydrocarbon chain is the molecular structure and is known as fatty acid. The reaction of fatty acids with sodium hydroxide leads to the formation of sodium salt of fatty acid.

(b)

Interpretation Introduction

To determine: The equations corresponding to the reaction of sodium stearate with ${\text{Mg}}^{2+}$.

Interpretation: The equations corresponding to the reaction of sodium stearate with ${\text{Mg}}^{2+}$ are to be stated.

Concept introduction: The presence of carboxylic group at the end of long hydrocarbon chain is the molecular structure and is known as fatty acid. The reaction of fatty acids with sodium hydroxide leads to the formation of sodium salt of fatty acid.

(c)

Interpretation Introduction

To determine: The equations corresponding to the reaction of sodium stearate with ${\text{Fe}}^{3+}$

Interpretation: The equations corresponding to the reaction of sodium stearate with ${\text{Fe}}^{3+}$ are to be stated.

Concept introduction: The presence of carboxylic group at the end of long hydrocarbon chain is the molecular structure and is known as fatty acid. The reaction of fatty acids with sodium hydroxide leads to the formation of sodium salt of fatty acid.