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The standard reduction potentials of two half cells are;
Ag+(aq) + e  →  Ag(s) ; Eθ =+0.80v

Mg2+(aq) + 2e   → Mg(s) Eθ = −2.37

  1. Draw a well labelled diagram of an electrochemical cell that can be constructed using the two half cells.
  2. Determine the e.m.f of the above cell.

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  1. Labelled diagram of Electrochemical cellusing half cells
  2. e.m.f = Eθred −  Eθoxide
            =+0.80 −(−2.37)
            =+3.17v
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