**Topic: Identifying the Weakest Reducing Agent from Given Half-Reactions**Examine the following half-reactions and select the weakest reducing agent among the substances.1. $ \text{Cr(OH)}_3(s) + 3e^- \rightleftharpoons \text{Cr(s)} + 3\text{OH}^-(aq) $ *Standard Electrode Potential ($E^\circ$): -1.48 \, \text{V}*2. $ \text{SnO}_2(s) + 2\text{H}_2\text{O}(l) + 4e^- \rightleftharpoons \text{Sn(s)} + 4\text{OH}^-( \, \text{aq}) $ *Standard Electrode Potential ($E^\circ$): -0.945 \, \text{V}*3. $ \text{iMnO}_2(s) + 4\text{H}^+(aq) + 2e^- \rightleftharpoons \text{Mn}^{2+}(aq) + 2\text{H}_2\text{O}(l) $ *Standard Electrode Potential ($E^\circ$): 1.224 \, \text{V}*4. $ \text{Hg}_2\text{SO}_4(s) + 2e^- \rightleftharpoons 2\text{Hg(l)} + \text{SO}_4^{2-}(aq) $ *Standard Electrode Potential ($E^\circ$): 0.613 \, \text{V}***Options:**A) $ \text{Cr(s)} $B) $ \text{OH}^-(aq) $C) $ \text{Sn(s)} $D) $ \text{Hg(l)} $E) $ \text{Mn}^{2+}(aq) $**Note:** The weakest reducing agent will have the most positive standard electrode potential ($E^\circ$) among the listed species in the half-reactions.

we have to select the weakest reducing agent

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

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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