what are the functions of salt bridge in an electrochemical cell??
Salt bridge is a U- tube containing electrolyte like KCl, KNO3 etc in semi- solid agar. It connects two half cells. The main uses of salt bridge are:
The transfer of electrons from Zn anode to Cu cathode develops excess +ve ions in ZnSO4 solution due to Zn2+ ions and excess -ve ions in CuSO4 solution due to SO42- ions which are neutralized by Cl- and K+ of salt bridge.
The circuit is completed externally by conducting wire for flow of current and internally by salt bridge for flow of ions.
This conversation is already closed by Expert
Now you can discuss homework, collaborate on projects and solve questions together.