What is the main function of a salt bridge in an electrochemical cell?

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Question: What is the main function of a salt bridge in an electrochemical cell?

Options:

Correct Answer: To maintain electrical neutrality

Solution:

The main function of a salt bridge is to maintain electrical neutrality by allowing ions to flow between the two half-cells.

What is the main function of a salt bridge in an electrochemical cell?

What is the main function of a salt bridge in an electrochemical cell?

Step 1: Understand that an electrochemical cell has two parts called half-cells.
Step 2: Know that each half-cell has a different chemical reaction happening.
Step 3: Realize that when the reactions occur, they create an imbalance of charge (positive and negative ions) in each half-cell.
Step 4: Learn that a salt bridge is a tube filled with a salt solution that connects the two half-cells.
Step 5: Understand that the salt bridge allows ions to move between the half-cells.
Step 6: Recognize that this movement of ions helps to balance the charge in both half-cells.
Step 7: Conclude that the main function of the salt bridge is to maintain electrical neutrality by allowing ions to flow between the two half-cells.

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