A cell consists of a gold wire and a saturated calomel electrode (S. C.E.) in a 0.150 M AuNO 3 solution at 25 °C. The gold wire is connected to the positive end of a potentiometer, and the S. C.E. is connected to the negative end of the potentiometer. What is the half‑reaction that occurs at the Au electrode? Include physical states.
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