Calculate the expected Ecell of a 0.002M Cu^2+ solution paired with a Cu^2+(0.1M)/Cu half-cell . Here's some information we had, but I'm unsure if it is needed for the problem. The measured Ecell was 0.053V. The calculated reduction potential that I calculated for Cu^2+(0.1M)/Cu half-cell was 0.212V

Calculate the expected Ecell of a 0.002M Cu^2+ solution paired with a Cu^2+(0.1M)/Cu half-cell . Here's some information we had, but I'm unsure if it is needed for the problem. The measured Ecell was 0.053V. The calculated reduction potential that I calculated for Cu^2+(0.1M)/Cu half-cell was 0.212V

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter21: Potentiometry

Section: Chapter Questions

Problem 21.16QAP

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The following cell was found to have a potential of 0.124 V: Ag|AgCl(sat’d)||Cu2+ (3.25 10-3 M|mernbrane electrode for Cu2+ When the solution of known copper activity was replaced with an unknown solution, the potential was found to be 0.055 V. What was the pCu of this unknown solution? Neglect the junction potential.
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 H2EDTA2(aq)+V2+(aq)VEDTA2(aq)+2H+(aq)K=? 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, was observed to be 1 .98 V. The solution was buffered at a pH of 10.00. a. Calculate before the titration was carried out. b. Calculate the value of the equilibrium constant, K, for the titration reaction. c. Calculate at the halfway point in the titration.
A metallurgist wants to gold-plate an object with a surface area of 17.21 in2. The gold plating must be 0.00200 in. thick (assume uniform thickness). (a) How many grams of gold (d=10.5g/cm3) are required? (b) How many minutes will it take to plate the object from a solution of AuCN using a current of 7.00 A? Assume 100% efficiency.
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Using values from the table of standard reduction potentials, calculate the cell potentials of the following cells. (a) Ga(s)|Ga3+(aq)Ag+(aq)|Ag(s) (b) Zn(s)|Zn2+(aq)Cr3+(aq)|Cr(s) (c) Fe(s),FeS(s)|S2-(aq)Sn2+(aq)|Sn(s)
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