<Li> it does not react with any of the chemicals used in the cell </Li> <Li> the anion and cation have similar conductivity, and hence similar migratory speed . </Li> <P> The electrolyte is often gelified with agar - agar to help prevent the intermixing of fluids which might otherwise occur . </P> <P> The conductivity of a glass tube bridge depends mostly on the concentration of the electrolyte solution . At concentrations below saturation, an increase in concentration increases conductivity . Beyond - saturation electrolyte content and narrow tube diameter may both lower conductivity . </P>

Functions of salt bridge in an electrochemical cell