A voltaic cell is constructed in which the anode is a Sn|Sn2+ half cell and the

Question

A voltaic cell is constructed in which the anode is a Sn|Sn2+ 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 Sn|Sn2+ electrode the Cl-|Cl2 electrode. In the salt bridge, anions migrate the Sn|Sn2+ compartment the Cl-|Cl2 compartment.

Explanation / Answer

The anode reaction

Sn(s) --------------> Sn^2+ (aq) + 2e^-

The cathode reaction

Cl2(g) + 2e^- ----------> 2Cl^- (aq)  

Sn(s) --------------> Sn^2+ (aq) + 2e^-

Cl2(g) + 2e^- ----------> 2Cl^- (aq)  

----------------------------------------------------

Sn(s) + Cl2(g) -----------> Sn^2+ (aq) + 2Cl^- (aq) net cell reaction

In the external circuit, electrons migrate the from Sn|Sn2+ electrode to the Cl-|Cl2 electrode.

In the salt bridge, anions migrate the to Sn|Sn2+ compartment from the Cl-|Cl2 compartment.

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