The standard electrode potentials of Cu²⁺/Cu+ and Cu+/Cu redox pairs in a ligand-free aqueous solution are 0.17 V and 0.52 V (vs. NHE), respectively, and 1.19 V and -0.38 V (vs. NHE) in an acetonitrile solution. What is the standard electrode potential of Cu²⁺/Cu+ in acetonitrile solution?
