# Exp NoExperinyElectraChean stoyVaydeo SbleVOl tage29NameKatherne EvaLab PartnerCourse &Section No.Desk NoCell RadknCoi ZnO270 V+ 2 ReducedFe+32-FeCell @eactionReitedO 362V3 2n 2COstae CoZntco Zna ColAxn4zn2n+ 12e41PedtedCellaxnAI3B2n2AO.479 VCOLU FELAWitness/TADateSignatureNote: Insert Divider Under Cop Sheet Before WTHE HAYDEN-MCNEIL STUDENT LAB NOTEBOOK

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Asked Nov 19, 2019
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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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## Expert Answer

Step 1

The given EMF values are wrong so here we use the standard electrode potential values and  the EMF of the cell is calculated by using below formula,

Step 2

From the standard reduction potentials,

Step 3

Substitute the above vales to get the standa...

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