What is the function of the salt bridge in a galvanic (voltaic) electrochemical cell?
Answer and explanation
Correct answer: C. Maintaining electrical neutrality in half-cells by allowing ion migration
As oxidation produces cations at the anode and reduction consumes cations at the cathode, the salt bridge maintains electrical neutrality by allowing anions (e.g. NO3-) to migrate into the anode and cations (e.g. K+) to migrate into the cathode.
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