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Calculates the balance between acids and bases in chemical solutions using pH and pOH. This tool helps chemists, students, and lab professionals determine hydrogen ion concentrations, solution acidity, and buffering capacity.
Formule
pH = -log[H+], pOH = -log[OH-], pH + pOH = 14
Guide étape par étape
- 1Measure or know the hydrogen ion concentration [H+]
- 2Apply the logarithmic pH formula
- 3Calculate pOH from the relationship pH + pOH = 14
- 4Determine if solution is acidic (pH < 7), basic (pH > 7), or neutral (pH = 7)
Exemples résolus
Entrée
[H+] = 1.0 × 10^-7 mol/L
Résultat
pH = 7 (neutral)
Pure water at 25°C has pH of 7
Erreurs courantes à éviter
- ✕Forgetting the negative logarithm
- ✕Confusing [H+] with pH value
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