The Pourbaix diagram for vanadium is shown below: (11) (111) (iv) (vi) ESHE / V 1.0...

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The Pourbaix diagram for vanadium is shown below: (11) (111) (iv) (vi) ESHE / V 1.0 0.5 0.0 -0.5 -1.0 Vo -V³+ VO(OH); VO²+ VOH² V(OH)₂ V2+ VO₂(OH)₂ V6013 V₂O₁(c) Os(C) VOH V₂O3(c) VO,OH² 8 10 t = 25°C 12 pH Which vanadium species is the strongest oxidizing agent at pH = 10? Give the pH and potential values at which equimolar amounts of V²+ and VOH will co-exist. Can VOH* thermodynamically reduce water, and if so, is the reaction kinetically fast? Justify your answer. At pH = 9 which vanadium species can exist in solution? What are the oxidation states of vanadium in each of the species identified in part (iv)? Why do the oxidation states identified tend to increase with potential? How can Pourbaix diagrams be used to identify processes that do not involve acid-base equilibria? Identify any redox processes shown in the diagram that do not involve H/OH™". The Pourbaix diagram for vanadium is shown below: (11) (111) (iv) (vi) ESHE / V 1.0 0.5 0.0 -0.5 -1.0 Vo -V³+ VO(OH); VO²+ VOH² V(OH)₂ V2+ VO₂(OH)₂ V6013 V₂O₁(c) Os(C) VOH V₂O3(c) VO,OH² 8 10 t = 25°C 12 pH Which vanadium species is the strongest oxidizing agent at pH = 10? Give the pH and potential values at which equimolar amounts of V²+ and VOH will co-exist. Can VOH* thermodynamically reduce water, and if so, is the reaction kinetically fast? Justify your answer. At pH = 9 which vanadium species can exist in solution? What are the oxidation states of vanadium in each of the species identified in part (iv)? Why do the oxidation states identified tend to increase with potential? How can Pourbaix diagrams be used to identify processes that do not involve acid-base equilibria? Identify any redox processes shown in the diagram that do not involve H/OH™".

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