Question

Question (1)

Copper and Zn can be used to make a galvanic cell (i.e., battery) with a voltage potential of 1.1 V.

(a) Write the balanced half-reactions, and the overall reaction for a gold/aluminum galvanic cell.

(b) Using the standard reduction potentials for gold and aluminum, what would the voltage potential of a Au/Al battery be?

(c) To achieve the voltage potential predicted by their standard reduction potentials, what would the concentrations of gold and aluminum need to be in the electrolyte solutions?

(d) How might you make the voltage potential of a Au/Al galvanic cell even larger than the potential predicted by their standard reduction potentials?