(A) Use data from Tables 19.1 and 23.4 to determine whether nitric acid can be used to oxidize V³⁺(aq) to VO²⁺(aq) for standard-state conditions. If so, write a balanced equation for the reaction.

(B) Select a reducing agent from Table 19.1 that can be used to reduce VO²⁺(aq) to V²⁺(aq) for standard-state conditions in acidic solution. Consider that the reduction occurs in two stages: VO²⁺(aq) → V³⁺(aq) → V²⁺(aq), but note that the V²⁺(aq) must not be reduced to V(s).

Tables 19.1

Tables 23.4

TABLE 19.1 Standard Reduction Potentials at 298.15 K and 1 atma Reduction Half-Cell Reaction Acidic solution F(g) + 2 e 2 F (aq) O3(g) + 2 H+ (aq) + 2 e O(g) + HO(1) SO (aq) + 2 e 2 SO4(aq) H,Oz(aq) + 2H*(aq) +2e