Answer to Question #262612 in Physical Chemistry for Michelle

Question

What is the dissociation constant Ka of an acid

Answer 1

An acid dissociation constant (Ka) is a quantitative measure of the strength of an acid in solution. The dissociation constant is usually written as a quotient of the equilibrium concentrations (in mol/L): Ka=[A−][H+][HA] K a = [ A − ] [ H + ] [ H A ] .