In a galvanic cell, a spontaneous redox reaction occurs. However, the reactants

Question

In a galvanic cell, a spontaneous redox reaction occurs. However, the reactants are separated such that the transfer of electrons is forced to occur across a wire. The resulting cell potential is measured in volts (V) and is defined by the equation given below: E degree_cell = E degree_red (cathode) - E degree_red (anode) A table of standard reduction potentials gives E degree_red values for common half-reactions. Calculate the standard potential for the following galvanic cell: Zn(s) | Zn^2+ (aq) || Cu^2+ (aq) | Cu(s) which has the overall balanced equation: Zn(s) + Cu^2+ (aq) rightarrow Zn^2+ (aq) + Cu(s) Express your answer to three significant figures and include the appropriate units.

Explanation / Answer

E0cell = E0cathode - E0anode

       = 0.34 - (- 0.76)

       = 1.1 V

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