pH of Salt of Weak Acid and Weak Base Calculator

pH of Salt of Weak Acid and Weak Base Calculator

Estimate the pH of a solution containing a salt formed from a weak acid and a weak base.
The pH is approximated by:
\[ \text{pH} = 7 + \frac{\text{p}K_a – \text{p}K_b}{2} \]

* Enter the pKₐ of the weak acid and the pK_b of the weak base.

Step 1: Enter Parameters

Example: 4.76 (for acetic acid)

Example: 4.75 (for ammonia)

Formula: \[ \text{pH} = 7 + \frac{\text{p}K_a – \text{p}K_b}{2} \]