Chapter 8.12, Problem 8.12P

Interpretation Introduction

Interpretation:

The pH of 0.2 mol TRIS acid and 0.05 mol TRIS base buffer in 500 mL water to be identified.

Concept Introduction:

pOH of a basic buffer can be shown as:

$\text{pOH = pKb + log }\frac{\left[\text{salt}\right]}{\left[\text{base}\right]}$

pH of a acidic buffer can be shown as:

$\text{pH = pKa + log }\frac{\left[\text{salt}\right]}{\left[\text{acid}\right]}$

Where, [salt]is the concentration of salt.

[acid] is the concentration of acid.

[base] is the concentration of base.