Chemistry · Electrochemistry
The standard reduction potentials at 298 K for the following half-cells are given below: NO3- + 4H+ + 3e- → NO(g) + 2H2O (E0 = 0.97 V) V2+(aq) + 2e- → V (E0 = -1.19 V) Fe3+(aq) + 3e- → Fe (E0 = -0.04 V) Ag+(aq) + e- → Ag(s) (E0 = 0.80 V) Au3+(aq) + 3e- → Au(s) (E0 = 1.40 V) Find the number of metal(s) among V, Fe, Ag, and Au that will be oxidized by NO3- in an aqueous solution.
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