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What is the role of a salt bridge in a galvanic cell?
What is the role of a salt bridge in a galvanic cell?
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Practice Questions
1 question
Q1
What is the role of a salt bridge in a galvanic cell?
To provide a pathway for electrons
To maintain charge balance
To increase voltage
To decrease resistance
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The salt bridge maintains charge balance by allowing ions to flow between the two half-cells.
Questions & Step-by-step Solutions
1 item
Q
Q: What is the role of a salt bridge in a galvanic cell?
Solution:
The salt bridge maintains charge balance by allowing ions to flow between the two half-cells.
Steps: 6
Show Steps
Step 1: Understand that a galvanic cell has two parts called half-cells, one for oxidation and one for reduction.
Step 2: Realize that during the chemical reactions in the half-cells, electrons move from one half-cell to the other.
Step 3: Know that as electrons move, one half-cell becomes positively charged and the other becomes negatively charged.
Step 4: Learn that the 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 flow between the half-cells to balance the charge.
Step 6: Conclude that the salt bridge is essential for the cell to keep working by maintaining charge balance.
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