Henderson equation

The Henderson-Hasselbalch equation explains the relationship between

• pH and pOH

• pH and logKa

• pH and pKa

• pOH and pKa

The acid dissociation constant is denoted by

• pH

• Ka

• pOH

• Kd

The pH is a measure of the hydrogen ion concentration of an

• ionic solution

• aqueous solution

• homogenous solution

• heterogenous solution

A buffer solution contains 0.36 M sodium acetate (CH3COONa) and 0.45 M acetic acid (CH3COOH), pKa = 4.8. What is the pH of this buffer solution?

• 4.7

• 6.3

• 5.5

• 4.2