MACROSCOPIC VIEW
Current pH (pKₐ = 4.76):
4.76
[HA]
Ratio
[A⁻]
50
50
Henderson-Hasselbalch Eq:
Buffer Action (Neutralization):
(Weak acid absorbs added acid)
(Weak conjugate absorbs added base)
pH = pKₐ + log([A⁻]/[HA])Buffer Action (Neutralization):
H⁺ + A⁻ → HA (Weak acid absorbs added acid)
OH⁻ + HA → A⁻ + H₂O (Weak conjugate absorbs added base)
HA (Weak Acid)
A⁻ (Conjugate Base)
H⁺ (Strong Acid)
OH⁻ (Strong Base)