(The symbol K a {\displaystyle K_{a}} , used for the acid dissociation constant, can lead to confusion with the association constant and it may be necessary to see the reaction or the equilibrium expression to know which is meant.)
(O símbolo K a {\displaystyle K_{a}} , usado para a constante de disocición de ácido, pode levar a confusión coa constante de asociación e pode ser necesario ver a reacción ou a expresión de equilibrio para saber que significa en cada caso.)