Acid Dissociation Constant Calculator







Formula

To calculate the Acid Dissociation Constant:

\[ K_a = \frac{[A^-] \cdot [H^+]}{[HA]} \]

Where:

What is Acid Dissociation Constant?

The Acid Dissociation Constant (Ka) is a measure of the strength of an acid in solution. It is the equilibrium constant for the dissociation of an acid into its conjugate base and a hydrogen ion. The larger the Ka value, the stronger the acid.

Example Calculation

Let's assume the following values:

Step 1: Calculate the Acid Dissociation Constant:

\[ K_a = \frac{0.01 \cdot 0.02}{0.1} = \frac{0.0002}{0.1} = 0.002 \]

So, the Acid Dissociation Constant (Ka) is 0.002.