Given the following half reaction: a. lt b. Pt| Fe,Fe+3 c. ZnZn 2 d. Ag | Ag For each of the following cell combination and or conditions (where the negative electrode is at the left of the combination). Combination A: a and b Combination B: c measured against a saturated calomel electrode at 30°C Combination C: b and d Combination D: c and a if [H] = 1.20M and [Zn+2] = 0.80M at 25°C Determine anode half reaction, cathode half reaction, overall reaction, cell notation, cell potential, free energy change, spontaneity and the equilibrium constant. The equilibrium constant is related to the standard cell potential through: RT 20 In K nF

Given the following half reaction: a. lt b. Pt| Fe,Fe+3 c. ZnZn 2 d. Ag | Ag For each of the following cell combination and or conditions (where the negative electrode is at the left of the combination). Combination A: a and b Combination B: c measured against a saturated calomel electrode at 30°C Combination C: b and d Combination D: c and a if [H] = 1.20M and [Zn+2] = 0.80M at 25°C Determine anode half reaction, cathode half reaction, overall reaction, cell notation, cell potential, free energy change, spontaneity and the equilibrium constant. The equilibrium constant is related to the standard cell potential through: RT 20 In K nF

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter17: Electrochemistry And Its Applications

Section: Chapter Questions

Problem 111QRT

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Halide ions can he deposited at a silver anode, the reaction being Ag(s) + X- AgX(s) +e- Suppose that a cell was formed by immersing a silver anode in an analyte solution that was 0.0250 M Cl-,Br-, and I -ions and connecting the half-cell to a saturated calomel cathode via a salt bridge. (a) Which halide would form first and at what potential? Is the cell galvanic or electrolytic? (b) Could I- and Br- be separated quantitatively? (Take 1.00 l0-5 M as the criterion for quantitative removal of an ion.) If a separation is feasible, what range of cell potential could he used? (c) Repeat part (b) for I- and Cl-. (d) Repeat part (b) for Br- and Cl-.
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