1) The half-cell is a chamber in the voltaic cell where one half-cell is the sit
ID: 869163 • Letter: 1
Question
1) The half-cell is a chamber in the voltaic cell where one half-cell is the site of the oxidation reaction and the other half-cell is the site of the reduction reaction.
Type the half-cell reaction that takes place at the anode for the cobalt-silver voltaic cell. Indicate the physical states using the abbreviation (s), (l), or (g) for solid, liquid, or gas, respectively. Use (aq) for an aqueous solution. Do not forget to add electrons in your reaction.
Express your answer as a chemical equation.
2) The half-cell is a chamber in the voltaic cell where one half-cell is the site of an oxidation reaction and the other half-cell is the site of a reduction reaction.
Type the half-cell reaction that takes place at the cathode for the cobalt-silver voltaic cell. Indicate physical states using the abbreviation (s), (l), or (g) for solid, liquid, or gas, respectively. Use (aq) for an aqueous solution. Do not forget to add electrons in your reaction.
Express your answer as a chemical equation.
Explanation / Answer
1) anode (oxidation half-cell reaction): Co(s) -----------> Co3+(aq) + 3e?
2) cathode (reduction half-cell reaction): 3Ag+(aq) + 3e? -----------> 3Ag(s)
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Over all cell reaction : Co(s) + 3 Ag+(aq) ---------------------> 3Ag(s) + Co3+(aq)
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