Chapter 17, Problem 21E

(a)

Interpretation Introduction

To calculate: The $\text{pH}$ of a solution that is $0.12\text{M}$ in lactic acid $\left({\text{CH}}_3\text{CH}\left(\text{OH}\right)\text{COOH}\right)$ and $0.11\text{M}$ in sodium lactate $\left({\text{CH}}_3\text{CH}\left(\text{OH}\right)\text{COONa}\right)$ .

(b)

Interpretation Introduction

To calculate: The $\text{pH}$ of a solution that is made by mixing $85\text{mL}$ of $0.13\text{M}$ lactic acid $\left({\text{CH}}_3\text{CH}\left(\text{OH}\right)\text{COOH}\right)$ and $95\text{mL}$ of $0.15\text{M}$ in sodium lactate $\left({\text{CH}}_3\text{CH}\left(\text{OH}\right)\text{COONa}\right)$ .