What would be the reduction potential of an electrode at 298 K, which originally contained 1M K2Cr2O7 solution in acidic buffer soluton of pH = 1.0 and which was treated with 50% of the Sn necessary to reduce all Cr2O72- to Cr3+. Assume pH of solution remains constant.  Given :ECr2O72-/Cr3+,H+0=1.33 V,log2=0.32.303RTF=0.06