Exp No Experiny ElectraChean stoy Vaydeo Sble VOl tage 29 Name Katherne Eva Lab Partner Course & Section No. Desk No Cell Radkn Coi Zn O270 V + 2 Reduced Fe+32-Fe Cell @eaction Reited O 362V 3 2n 2 COstae Co Zntco Zna Co lAxn 4zn2n+ 12e 41 Pedted Cellaxn AI3B2n2A O.479 V COLU FELA Witness/TA Date Signature Note: Insert Divider Under Cop Sheet Before W THE HAYDEN-MCNEIL STUDENT LAB NOTEBOOK
POST LABORATORY QUESTIONS After Laboratory Homework Part 1 You have assumed your reference metal had a zero voltage contribution for your cell; have the relative voltage of each of the other four metals. You are to calculate the voltage of the oxidation of your reference metal by adjusting each metal to the DEFINED scale relative to SHE.
Anode + Cathode = Voltage Reading so, Anode = Voltage Reading - Cathode
1.(a) Find the Reduction Potentials for your metal ions to the metal: Fe3+ to Zn2+ = 0.352 V, Cu2+ to Zn2+ = 0.270 V, Co2+ to Zn2+ = 0.254 V, Al3+ to Zn2+ = 0.479 V.
1.(b) Calculate your Anode from your Measured Voltage Reading and the Reduction Potential, voltage, of each metal.
1.(c) Calculate the average value of your Anode.
1.(d) Convert your voltage of the oxidation of the Anode to the reduction potential of your reference metal ion.
1.(e) Calculate the percent difference of your reference metal ion reduction potential to the reduction potential found in the standard reduction from the Table of Reduction Potentials.
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