Discussion11_ch18_080310_Answer

Discussion11_ch18_080310_Answer - CHEM102 Discussion Class...

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CHEM102 Discussion Class 11 (Chapter 18) Calculating E 0 cell (1) Calculate E 0 cell for the reaction Ag + (aq) + Co 2+ (aq) Ag(s) + Co 3+ (aq) E 0 cell = E ox + E red = +0.80 V + (-1.80 V) = -1.00 V (2) Calculate E 0 cell for the reaction Fe(s) + 2 H + (aq) Fe 2+ (aq) + H 2 (g) E 0 cell = E ox + E red = +0.41 V + 0.00 V = +0.41 V (3) Calculate E 0 cell for the reaction 2 I - (aq) + 2 H + (aq) I 2 (s) + H 2 (g) E 0 cell = E ox + E red = -0.54 V + 0.00 V = -0.54 V (4) Calculate E 0 cell for the reaction 2 Fe 3+ (aq) + 3 Pb(s) 2 Fe(s) + 3 Pb 2+ (aq) E 0 cell = E ox + E red = +0.13 V + (-0.04 V) = +0.09 V Cell diagrams/cell notation (5) Write a cell diagram/cell notation for the reaction Cu 2+ (aq) + Fe(s) Cu(s) + Fe 2+ (aq) Fe(s)|Fe 2+ (aq)||Cu 2+ (aq)|Cu(s) (6) Write a cell diagram/cell notation for the reaction Co 3+ (aq) + Ag(s) Co 2+ (aq) + Ag + (aq) Ag(s)|Ag + (aq)||Co 2+ (aq), Co 3+ (aq)|Pt Reaction Spontaneity There are several ways to predict spontaneity. Two of the simplest are to calculate E 0 cell
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Discussion11_ch18_080310_Answer - CHEM102 Discussion Class...

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