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Unformatted text preview: worst oxidizing agent? Ag, Ag + , Al, Al 3+ , Fe, Fe 2+ , Cl 2 , Cl-, H + , H 2 . Explain your reasoning thoroughly. E = E o 0.0257 V n ln Q b. Which is the best reducing agent in the above list of substances? Which is the worst? Explain thoroughly. 3. (3) A concentration cell is assembled with 0.200 M Pb 2+ (aq) and a lead electrode in one compartment. The other compartment contains 0.000500 M Pb 2+ (aq) and a lead electrode. Determine the voltage of this electrochemical cell. 4. (7) a. A galvanic cell is assembled using Al 3+ /Al and Cu 2+ /Cu half-cells. If the concentration of Al 3+ is 0.040 M when the overall cell voltage is 1.885 V, what is the concentration of Cu 2+ ? b. If the concentration of aluminum ion is decreased, will the cell voltage increase or decrease? Explain why....
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