When two electrodes are placed at both ends of the click, the Nernst equation holds when the potential difference is 0.

E (standard) (silver chloride/silver) -0.0257ln (silver chloride -)=E (standard) (silver+/silver) -0.0257 ln( 1/ silver+)

Then move the item to get the answer. . . . The relationship between all electrode potentials is placed at both ends of the electrodes to do this.

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