Henderson-Hasselbalch Equation

pH = pK_a + log([A^-]/[HA])

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🧪 About This Formula

The Henderson-Hasselbalch Equation is a fundamental equation in chemistry and chemical engineering. This calculator is used in science and engineering study and applies directly to chemistry and chemical engineering.

Formula pH = pK_a + log([A^-]/[HA]) Chemistry
Domain Chemistry acids bases
Solve For pH 1 variable
Level Undergraduate Education level

📐 Variables & Units

📋 Common Applications

🔢 How to Use This Calculator

pH = pK_a + log([A^-]/[HA])

Enter any 0 known values and the calculator will solve for the remaining variable. All inputs must use the correct SI units as listed above for accurate results.