Enter a pH value to instantly see the hydrogen ion concentration, hydroxide concentration, pOH, acid/base classification, and a real-world example at that pH level.
How it works
- Enter the numerical pH value (0 to 14).
- The engine automatically processes the logarithmic formulas for concentration.
- View the specific Hydrogen and Hydroxide ion concentration levels alongside acidity classes.
Frequently asked questions
What is the pH scale?
A logarithmic scale from 0 (most acidic) to 14 (most basic), measuring hydrogen ion concentration. Each step is a 10× change.
Why is the scale logarithmic?
Hydrogen ion concentrations span 14 orders of magnitude — from 10 mol/L at pH 0 to 10⁻¹⁴ mol/L at pH 14. Logarithms compress this range.
What is the pH of blood?
Normal blood pH is tightly regulated at 7.35–7.45. Values outside 6.8–7.8 are life-threatening.