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A solution of MnO^{2-}_4 is electrolytically reduced to Mn³^+. A current of 8.31 A is passed through the solution 4 for 15.0 min. What is the number of moles of Mn³^+ produced in this process? (1 faraday = 96,485 coulombs)
0.233 mol
1.72 x 10^{-3} mol
0.0258 mol
0.0775 mol
4.31 x 10^{-4} mol