Chapter 9.2, Problem 28PP

Interpretation Introduction

Interpretation:

The balanced chemical equation for the double displacement reaction of acetic acid and potassium hydroxide to produce potassium acetate and water needs to be determined.

Concept introduction:

The type of replacement reaction in which exchange of ions takes place between two compounds of the reaction is known as double displacement reaction. One example of this type of reaction is,

${\text{Ca(OH)}}_2(aq)+2\text{HCl(}aq\text{)}\to {\text{CaCl}}_2(aq)+2{\text{H}}_{\text{2}}\text{O}$

Answer to Problem 28PP

The balanced chemical equation is,

${\text{CH}}_{\text{3}}\text{COOH}\text{+}\text{KOH}\to {\text{CH}}_3\text{COOK}\text{+}{\text{H}}_2\text{O}$

Explanation of Solution

Reaction of acetic acid and potassium hydroxide produces potassium acetate and water. In the reaction, exchange of ions of both the reactants occurs. So, the reaction is double displacement reaction.

${\text{CH}}_{\text{3}}\text{COOH}\text{+}\text{KOH}\to {\text{CH}}_3\text{COOK}\text{+}{\text{H}}_2\text{O}$

The above equation is a balanced chemical equation.

Conclusion

In the double displacement reaction, exchange of ions of both the reactants occurs.