Test: MCAT Physical

When a galvanic cell contains two different solutions, a salt bridge is often required. The salt bridge allows the two solutions to remain isolated by providing ionic interactions for both solutions, without severely reducing the potential difference. The salt bridge is commonly composed of a potassium chloride solution.


In what direction would you expect the potassium ions to travel in a galvanic cell?

Toward the anode

Toward the cathode

The ions will distribute evenly in the salt bridge

The potassium will remain bound to chlorine, and will not ionize

1/3 questions


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