pH of Acid Buffer Calculator

Calculate the pH of a buffer solution using:
\[ \text{pH} = \text{p}K_a + \log\left(\frac{[\text{A}^-]}{[\text{HA}]}\right) \] where [A⁻] is the concentration of the conjugate base and [HA] is the concentration of the acid.

* Enter the buffer's pKₐ, conjugate base concentration (mol/L), and acid concentration (mol/L).

Step 1: Enter Buffer Parameters

pKₐ of the Acid:

Example: 4.75 (for acetic acid)

Conjugate Base Concentration, [A⁻] (mol/L):

Example: 0.1 M

Acid Concentration, [HA] (mol/L):

Example: 0.1 M

Step 1: Enter Buffer Parameters

Calculated pH