A voltaic cell is based on the reduction of Ag+(aq) to Ag(s) and the oxidation o

Question

A voltaic cell is based on the reduction of Ag+(aq) to Ag(s) and the oxidation of Sn(s) to Sn2+(aq). (a) Write half-reactions for the cell's anode and cathode. Include the phases of all species in the chemical equation. Anode Cathode (b) Write a balanced cell reaction. Include the phases of all species in the chemical equation. Tip: Plus signs (+) can be typed from the keyboard. Reaction arrows can be found in the Tools menu of the answer module. Include phases in the balanced chemical equation. Click on the (aq) button in the tools to select the phase to add. Phases should not be subscripted.

Explanation / Answer

Reduction half reaction (or cathode reaction):-

Ag+(aq) + e- ---------> Ag(s)..........(1)

Oxidation half reaction (or anode reaction) :-

Sn(s) --------> Sn2+(aq) + 2e- ............(2)

Overall reaction :-

2*(1) + (2)

or, 2Ag+(aq) + Sn(s) --------> 2Ag(s) + Sn2+(aq)

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