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Consider the Following Cell Reaction

Question 106

Multiple Choice

Consider the following cell reaction:
2Cr(s) + 6H+(aq) → 2Cr3+(aq) + 3H2(g) ; E°cell = 0.74V
Under standard-state conditions,what is E° for the following half-reaction?
Cr3+(aq) + 3e− → Cr(s)


A) -0.74 V
B) Consider the following cell reaction: 2Cr(s) + 6H<sup>+</sup>(aq) → 2Cr<sup>3+</sup>(aq) + 3H<sub>2</sub>(g) ; E°<sub>cell</sub> = 0.74V Under standard-state conditions,what is E° for the following half-reaction? Cr<sup>3+</sup>(aq) + 3e− → Cr(s) A) -0.74 V B) C) -0.37 V D) 0.37 V E) 0.74 V
C) -0.37 V
D) 0.37 V
E) 0.74 V

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