The standard reduction potential, E°, for the reaction Fe2+(aq) + 2e- ⇌ Fe(s) is -0.44 V while for Zn2+(aq) + 2e- ⇌ Zn(s) it is -0.7618 V. i) Write a balanced chemical equation for the spontaneous reaction that occurs between these reagents. Calculate the standard cell potential and comment on its value. ii) Determine the cell potential when a piece of iron is placed in a solution containing 0.1 M Zn2+ and 0.5 M Fe2+ . iii) Determine the concentration of Fe2+ when equilibrium is established and describe what will happen during the course of the reaction.

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