Answer: A galvanic cell is based on the following

Chapter 18, Problem 152

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A galvanic cell is based on the following half-reactions: In this cell, the copper compartment contains a copper electrode and [Cu2] 1.00 M, and the vanadium compartment contains a vanadium electrode and V2 at an unknown concentration. The compartment containing the vanadium (1.00 L of solution) was titrated with 0.0800 M H2EDTA2, resulting in the reaction The potential of the cell was monitored to determine the stoichiometric point for the process, which occurred at a volume of 500.0 mL H2EDTA2 solution added. At the stoichiometric point, ecell was observed to be 1.98 V. The solution was buffered at a pH of 10.00. a. Calculate ecell before the titration was carried out. b. Calculate the value of the equilibrium constant, K, for the titration reaction. c. Calculate ecell at the halfway point in the titration. 1

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