Acetic Acid Buffer (pH = pKa)
pKa of the Acid: 4.76; Concentration of Acid [HA]: 0.1 M; Concentration of Conjugate Base [A-]: 0.1 M
pH of Buffer: 4.76
Buffer pH Calculator
Chemistry0.0(0)
Calculates the pH of a buffer solution using the Henderson-Hasselbalch equation.
More tools:Science & Lab Calculators
How To Use
How to use this calculator
Start with your values, or try a preset.
Step 1
Enter pKa of the Acid, Concentration of Acid [HA], and Concentration of Conjugate Base [A-] in the units shown.
Step 2
Read pH of Buffer in the results panel. Results update as you change the inputs.
Step 3
Choose a preset to load an example, then adjust the values for your situation.
Worked Examples
Example calculations
See the inputs and their calculated results.
Acetic Acid Buffer (pH > pKa)
pKa of the Acid: 4.76; Concentration of Acid [HA]: 0.05 M; Concentration of Conjugate Base [A-]: 0.1 M
pH of Buffer: 5.061029996
Ammonia Buffer (pH = pKa)
pKa of the Acid: 9.25; Concentration of Acid [HA]: 0.1 M; Concentration of Conjugate Base [A-]: 0.1 M
pH of Buffer: 9.25
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