Acid Dissociation Constant Calculator


About Acid Dissociation Constant Calculator (Formula)

The Acid Dissociation Constant (Ka) Calculator is a tool used in chemistry to determine the strength of an acid in terms of its tendency to dissociate into ions in a solution. It helps in understanding the acid’s behavior and its equilibrium with its conjugate base. The calculation of the acid dissociation constant involves the following formula:

Ka = [H+][A-] / [HA]


  • Ka represents the Acid Dissociation Constant.
  • [H+] refers to the concentration of hydrogen ions in the solution.
  • [A-] denotes the concentration of the conjugate base.
  • [HA] represents the concentration of the undissociated acid.

To calculate the Acid Dissociation Constant, divide the product of the hydrogen ion concentration and the conjugate base concentration by the concentration of the undissociated acid.

It’s important to note that the concentrations of [H+], [A-], and [HA] are usually expressed in terms of molarity (moles per liter, M) or other appropriate units.

The Acid Dissociation Constant provides information about the degree of ionization of an acid and its relative strength. A higher Ka value indicates a stronger acid that dissociates more readily, while a lower Ka value suggests a weaker acid with less dissociation.

The Acid Dissociation Constant Calculator is a useful tool for chemists and students studying acid-base equilibria. It helps in quantifying and comparing the strengths of different acids, allowing for a deeper understanding of their chemical properties and behavior in solution.

Leave a Comment