A. From the cell voltage measured for the final studied, with CuCl2 at an unknown concentration , and the known half reaction potential for Zn/Zn^2+, calculate the reduction half potential for the Cu^2+/Cu half reaction and enter the value . half reaction Zn/Zn^2+ (+0.034 ) Final cell studied-cell voltage 1.070 v

voltage range 0.004

temperature 25.1

B. Now, from the difference of the standard potential for the cell , the observed potential, and the Nerst equation , determine the concentration of Cu^2+(aq) in the unknown solution and enter below . M