Question

A silver wire coated with AgCl is sensitive to the presence of chloride ion because of the…

A silver wire coated with AgCl is sensitive to the presence of chloride ion because of the half-cell reaction
AgCl(s) + e- —————> Ag(s) + Cl-Delta E°AgCl = +0.2223 V
A student, wishing to measure the chloride ion concentration in a number of water samples, constructed a galvanic cell using the AgCl electrode as one half-celland a copper wire dipping into 1.00 M CuSO4 solution as the other half-cell. In one analysis, the potential of the cell was measured to be 0.0342 V with the copperhalf-cell serving as the cathode. What was the chloride ion concentration in the water? (Take ?E°Cu2+ = +0.3419 V)
(Note: For assessment purposes, enter your result using 3 significant digits.)
[Cl-] = __________________ M

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