Problem: A voltaic cell is constructed with two silver-silver chloride electrodes, each of which is based on the following half-reaction:AgCl(s) + e-  →  Ag(s) + Cl- (aq).The two cell compartments have [Cl- ] = 1.51×10−2 M and [Cl- ] = 2.60 M , respectively.For the cathode compartment, predict whether [Cl- ] will increase, decrease, or stay the same as the cell operates.

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We are asked to determine if the [Cl-] will increase, decrease or stay the same in the cathode department in the voltaic cell given.


We have to determine the anode (oxidation) and cathode (reduction) reactions in the concentration cell.

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Problem Details

A voltaic cell is constructed with two silver-silver chloride electrodes, each of which is based on the following half-reaction:
AgCl(s) + e-  →  Ag(s) + Cl- (aq).
The two cell compartments have [Cl- ] = 1.51×10−2 M and [Cl- ] = 2.60 M , respectively.

For the cathode compartment, predict whether [Cl- ] will increase, decrease, or stay the same as the cell operates.