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What Is the E°cell for the Cell Represented by the Combination

Question 48

Multiple Choice

What is the E°cell for the cell represented by the combination of the following half-reactions? ClO4-(aq) + 8H+(aq) + 8e- What is the E°<sub>cell</sub> for the cell represented by the combination of the following half-reactions? ClO<sub>4</sub><sup>-</sup>(aq) + 8H<sup>+</sup>(aq) + 8e<sup>-</sup> Cl<sup>-</sup>(aq) + 4H<sub>2</sub>O(l) E°<sup> </sup>= 1.389 V VO<sub>2</sub><sup>+</sup>(aq) + 2H<sup>+</sup>(aq) + e<sup>-</sup> VO<sup>+</sup>(aq) + H<sub>2</sub>O(l) E°<sup> </sup>= 0.991 V A) -0.398 V B) -2.380 V C) 0.398 V D) 2.380 V E) none of the above Cl-(aq) + 4H2O(l) E° = 1.389 V
VO2+(aq) + 2H+(aq) + e- What is the E°<sub>cell</sub> for the cell represented by the combination of the following half-reactions? ClO<sub>4</sub><sup>-</sup>(aq) + 8H<sup>+</sup>(aq) + 8e<sup>-</sup> Cl<sup>-</sup>(aq) + 4H<sub>2</sub>O(l) E°<sup> </sup>= 1.389 V VO<sub>2</sub><sup>+</sup>(aq) + 2H<sup>+</sup>(aq) + e<sup>-</sup> VO<sup>+</sup>(aq) + H<sub>2</sub>O(l) E°<sup> </sup>= 0.991 V A) -0.398 V B) -2.380 V C) 0.398 V D) 2.380 V E) none of the above VO+(aq) + H2O(l) E° = 0.991 V


A) -0.398 V
B) -2.380 V
C) 0.398 V
D) 2.380 V
E) none of the above

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