Question

1)A voltaic cell is constructed in which the anode is a I-|I2 half cell and the...

1)A voltaic cell is constructed in which the anode is a I-|I2 half cell and the cathode is a Cl-|Cl2 half cell. The half-cell compartments are connected by a salt bridge.

(Use the lowest possible coefficients. Use the pull-down boxes to specify states such as (aq) or (s). If a box is not needed, leave it blank.)

The anode reaction is:

The cathode reaction is:

The net cell reaction is:

In the external circuit, electrons migrate _____the I-|I2 electrode ____ the Cl-|Cl2 electrode.

In the salt bridge, anions migrate ____ the I-|I2 compartment ____the Cl-|Cl2 compartment

Homework Answers

Answer #1

The representation of the given voltaic cell I-|I2 || Cl2|Cl-. Now, oxidation occurs at anode and reduction occurs at cathode. Therefore, the anode reaction: 2I- (aq) + 2e- → I2 (g). The cathode reaction: Cl2 (aq)+ 2e- → 2Cl- (aq). Therefore, the net cell reaction: 2I- (aq) + Cl2 (g) → I2 (g) + 2Cl- (aq). Electrons migrate from the anode to the cathode. Thus, in external circuit, electrons migrate from the I electrode to the Cl electrode. Salt bridge: As we know the electrons flow from the anode to the cathode.

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