MCAT General Chemistry Question 294: Answer and Explanation
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Question: 294
1. What is the standard cell voltage, E°, of the cell used in the experiment?
- A. + 0.52 V
- B. + 0.34 V
- C. + 0.18 V
- D. 0 V
Correct Answer: D
Explanation:
D The setup shown is an example of a concentration cell. The difference in concentration will produce an electrical current, until the concentrations in both half-cells become equal. The standard cell voltage for this cell (and all concentration cells) is 0, because reciprocal redox reactions are occurring.