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pH & pOH

Formulas for acidity and basicity.

pH Definition
pH=−log⁡[H+]pH = -\log[H^+]
pOH Definition
pOH=−log⁡[OH−]pOH = -\log[OH^-]
pH and pOH Relationship
At standard temperature (25°C).
pH+pOH=14pH + pOH = 14
Henderson-Hasselbalch Equation
pH=pKa+log⁡[A−][HA]pH = pK_a + \log \frac{[A^-]}{[HA]}

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pH & pOH Formulas - Chemistry | Formulai