A voltaic electrochemical cell is constructed using the following reaction. The

Question

A voltaic electrochemical cell is constructed using the following reaction. The half-cell components are separated by a salt bridge. 2Ag^+(aq) + 2T^-(aq) rightarrow 2Ag(s) + I_2(s) Write the reactions that take place at the anode and at the cathode, the direction in which the electrons migrate in the external circuit, and the direction the anions in the salt bridge migrate. Enter the reaction that takes place at the anode. Include state symbols: Enter the reaction that takes place at the cathode. Include state symbols: In the external circuit, electrons migrate the I' electrode the Ag^+ electrode. In the salt bridge, anions migrate the Ag^+ compartment the I^- compartment.

Explanation / Answer

Reaction at anode:

2 I- --------> I2 + 2e-

Reaction at cathode:

2 Ag+ + 2 e- -----------> 2Ag

In the external circuit, electrons migrate from the I- electrode towards the Ag+ electrode.

In the salt bridge, anions migrate from the Ag+ compartment towards the I- compartment.

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