Question
- Which of the following is the primary function of a salt bridge
electrochemical cell?
A. To provide electrons
B. To complete the circuit
C. To transfer oxygen molecules
D. To generate voltage
electrochemical cell?
A. To provide electrons
B. To complete the circuit
C. To transfer oxygen molecules
D. To generate voltage
Ask by King Sanders. in South Africa
Jan 20,2025
Upstudy AI Solution
Tutor-Verified Answer
Answer
A salt bridge in an electrochemical cell completes the circuit by allowing ion flow between the two half-cells, maintaining electrical neutrality and enabling the continuous flow of electrons.
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Beyond the Answer
A salt bridge is essential in electrochemical cells as it helps maintain electrical neutrality by allowing ions to move between the two half-cells. Through this movement, the salt bridge completes the circuit, enabling the flow of electricity and keeping the reaction balanced, preventing charge buildup that could stop the reaction.
Additionally, salt bridges can typically be made from a gel containing a salt solution, often potassium chloride or sodium sulfate. This setup not only allows the flow of ions but also minimizes mixing of the different solutions in the half-cells, ensuring that the chemical reactions proceed smoothly without interference.
