Question

Lab11_PP_147-156... * 5 79 Calculations Part I:Voltaic Cells A. Cell Potentials Using a Zn(s)[Zn2+ (aq) Reference Electrode Complete the following table using your mean values for Part 1 A, and assigning a reference voltage of 0.00 volts for the reduction of Zn?t to Zn. Put the voltages in increasing order. Half-Reaction Standard Reduction Potential at 25 °C, Volts Zn2+ (aq) + 2e → Zn (s) 0.00 0.328 0.443 0.907 observed voltage 0.469 percent error B. Cell Potentials Using the Table Above Redox Couple predicted voltage 1. Pb/Cu 2. Fe/Cu 3. Fe/Pb 0.566 0.86 pred voltage - obs. voltage pred voltage X 100 *Percent erroris calculated by the formulator

Answer 1

Please see the attached image for your answer. All calculations were performed using a basic scientific calculator.
I hope this is what you needed in the answers, or else, please feel free to use the comments section!

11 for Pl cu couple, predicted voltage Vzyou - Vawen I 10.907 - 0.443 ) 0.464 V otsewed voltage 0.469 V % enor x 100% 0.464 -0.469 0.464 1.08% 23 Fe/cu couple, predicted - 10.907 -0.328/ = $ 0.579 V obsewed 0.566 V error = x 100% 0.579 -0.566 0.579 2.25% (wi Fe/Pb couple, predicted → 10.328+ 0.443) 2 XK18W 0.771 V % enor = observed 0.86 v 0.971 -0.86 X100% 0.711 11.54%