pH calculator
Acidity from concentration, and back.
How it’s worked out
pH = −log₁₀[H⁺], and pH + pOH = 14 at 25 °C (Kw = 1.0 × 10⁻¹⁴, IUPAC). Treats concentration as activity: fine for dilute strong acids and bases.
Acidity from concentration, and back.
pH = −log₁₀[H⁺], and pH + pOH = 14 at 25 °C (Kw = 1.0 × 10⁻¹⁴, IUPAC). Treats concentration as activity: fine for dilute strong acids and bases.