Answer to Question #180238 in General Chemistry for Mariah

Question

Describe the structure and purpose of the Salt Bridge. What is the difference between a

cathode and an anode?

Answer 1

A salt bridge is a laboratory device that maintains electrical neutrality within the internal circuit of a galvanic cell/ voltaic cell, a type of electrochemical cell. It is used to connect the oxidation and reduction half-cells of the galvanic cell.

The salt bridge usually consists of a strong electrolyte which is further made up of ions. For example, AgNO₃, KCl, 

the anode is the electrode at which the oxidation half-reaction occurs while the cathode is the electrode at which the reduction half-reaction occurs