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2-6. (i) Considering the effects of the ionic strength, use Excel to calculate the cell voltage of...

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Chemistry

2-6.

(i) Considering the effects of the ionic strength, useExcel to calculate the cell voltage of Zn |ZnSO4 (x M) || PbSO4(s) | Pb, wherex: 1´10-4, 5´10-4,1´10-3, 5´10-3, 0.01, and 0.05 M.

PbSO4 → Pb2+ +SO42+, Ksp = 1.69 ´10-8

Pb2+ + 2e- → Pb, Eo =-0.13 V vs. NHE

Zn2+ + 2e- → Zn, Eo =-0.76 V vs. NHE

(ii) Recalculate the cell voltage when 1.0 M KNO3 ispresent in the anodic half-cell.

(iii) Plot the results of (i) and (ii) againstlog(x) together on one sheet.

(iv) Give conclusions on the difference between the curves.

Thank you.

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