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10. You want to know the standard reduction potential for the Cr* (aq)|Cr(s) half- reaction Cr3 + (aq) + 3e-→ Cr(s) y, your textbook only lists the following data for chromium: Cr3+ (aq) + e-→ Cr2+ (aq) Cr2+ (aq) + 2e-→ Cr(s) E =-0.424 V E =-0.900 V What is the standard reduction potential for the Cr (a)Cr(s) half-reaction at 25 °C? A)-0.741 V B)-1.324 V C) 0.382V D)-0.141 V E) 0.476 V

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13 O.900 2 _

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