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Examine the following half-reactions and select the weakest reducing agent among the substances. Cr(OH)3(s) + 3e-Cr(s) + 3OH-(aq) SnO₂(s) + 2H₂O(l) + 4e¯ ⇒ Sn(s) + 40H-(aq) MnO₂(s) + 4H+ (aq) + 2e- ⇒ Mn²+ (aq) + 2H₂O(l) Hg2SO4(s) + 2e-2Hg(/) + SO4²-(aq) A) Cr(s) B) OH-(aq) C) Sn(s) D) Hg(/) E) Mn²+ (aq) E° = -1.48 V E° = -0.945 V E° = 1.224 V E° = 0.613 V

Examine the following half-reactions and select the weakest reducing agent among the substances. Cr(OH)3(s) + 3e-Cr(s) + 3OH-(aq) SnO₂(s) + 2H₂O(l) + 4e¯ ⇒ Sn(s) + 40H-(aq) MnO₂(s) + 4H+ (aq) + 2e- ⇒ Mn²+ (aq) + 2H₂O(l) Hg2SO4(s) + 2e-2Hg(/) + SO4²-(aq) A) Cr(s) B) OH-(aq) C) Sn(s) D) Hg(/) E) Mn²+ (aq) E° = -1.48 V E° = -0.945 V E° = 1.224 V E° = 0.613 V

Chemistry: Principles and Practice
Chemistry: Principles and Practice
3rd Edition
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Chapter18: Electrochemistry
Section: Chapter Questions
Problem 18.24QE
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Examine the following half-reactions and select the weakest reducing agent among the substances. Cr(OH)3(s) + 3e- Cr(s) + 3OH-(aq) SnO₂(s) + 2H₂O(l) + 4e¯ ≥ Sn(s) + 4OH-( aq) MnO₂(s) + 4H*(aq) + 2e- ⇒ Mn²*(aq) + 2H₂O(l) Hg2SO4(s) + 2e-2Hg(/) + SO4²-(aq) A) Cr(s) B) OH-(aq) C) Sn(s) D) Hg(/) 2+ E) Mn²+ (aq) E° = -1.48 V E° = -0.945 V E° = 1.224 V E° = 0.613 V
Transcribed Image Text:Examine the following half-reactions and select the weakest reducing agent among the substances. Cr(OH)3(s) + 3e- Cr(s) + 3OH-(aq) SnO₂(s) + 2H₂O(l) + 4e¯ ≥ Sn(s) + 4OH-( aq) MnO₂(s) + 4H*(aq) + 2e- ⇒ Mn²*(aq) + 2H₂O(l) Hg2SO4(s) + 2e-2Hg(/) + SO4²-(aq) A) Cr(s) B) OH-(aq) C) Sn(s) D) Hg(/) 2+ E) Mn²+ (aq) E° = -1.48 V E° = -0.945 V E° = 1.224 V E° = 0.613 V
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