The Acidic Environment > 3. Acids >
Process information from secondary sources to calculate pH of strong acids given appropriate hydrogen ion concentrations
- If the hydrogen ion concentration of a strong acid solution is known, the pH can be calculated by substituting the hydrogen ion concentration into the pH formula:
- If the concentration of a strong acid solution is known, then the hydrogen ion concentration can be determined based on whether the acid involved is monoprotic, diprotic or triprotic:
- The hydrogen ion concentration of a monoprotic strong acid solution is equal to the concentration of the acid itself.
- The hydrogen ion concentration of a diprotic strong acid solution is equal to twice the concentration of the acid itself.
- The hydrogen ion concentration of a triprotic strong acid solution is equal to three times the concentration of the acid itself.