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    General Chemistry Principles
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    Exam 23: The Transition Elements
  5. Question
    Use the Couples Cr<sup>2+</sup>(aq)| Cr<sup>3+</sup>(aq),-0
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Use the Couples Cr2+(aq)| Cr3+(aq),-0

Question 63

Question 63

Multiple Choice

Use the couples Cr2+(aq) | Cr3+(aq) ,-0.424 V and Cr3+(aq) | Cr2O72-(aq) ,-1.33 V to determine E° of Use the couples Cr<sup>2+</sup>(aq) | Cr<sup>3+</sup>(aq) ,-0.424 V and Cr<sup>3+</sup>(aq) | Cr<sub>2</sub>O<sub>7</sub><sup>2-</sup>(aq) ,-1.33 V to determine E° of   Cr<sup>2+</sup>(aq) . A) -0.02 V B) 1.75 V C) -1.75 V D) 0.81 V E) -1.10 V Cr2+(aq) .


A) -0.02 V
B) 1.75 V
C) -1.75 V
D) 0.81 V
E) -1.10 V

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