Question

Find the cell potential of a galvanic cell zinc and copper ?

Answer 1

+1.101V

Explanation:

1. The 2 ionic half equations of the cell are given below.
   Since zinc is more reactive than copper, zinc loses electrons more readily to form `Zn^(2+)` ions.
   `Zn (s) -> Zn^(2+)(aq) +2e^-`
   `Cu^(2+)(aq) +2e^- -> Cu(s)`
2. Look up the standard potentials for the half-reactions.
   `E^o` for reduction of `cu^(2+)` is +0.339V
   `E^o` for oxidation of `Zn` is +0.762V

Cell potential
= +0.339V +0.762V
= +1.101V