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What is the purpose of a salt bridge in a galvanic cell?
What is the purpose of a salt bridge in a galvanic cell?
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Practice Questions
1 question
Q1
What is the purpose of a salt bridge in a galvanic cell?
To connect the electrodes
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
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Q
Q: What is the purpose 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: 7
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 these 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 this charge imbalance can stop the reaction if not corrected.
Step 5: Understand that a salt bridge is a tube filled with a salt solution that connects the two half-cells.
Step 6: Recognize that the salt bridge allows ions to flow between the half-cells, which helps balance the charges.
Step 7: Conclude that the purpose of the salt bridge is to maintain charge balance so the reaction can continue.
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