Henderson-Hasselbalch Equation
From Gomerpedia
The Henderson-Hasselbalch equation is represented as such:
pH = pKa + log10([A-]/[HA]),
where pKa stands for who knows, [A-] stands for something else, and [HA] stands for headache.
In a simple formula, the Henderson-Hasselbalch equation captures everything we hate about biochemistry.