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1. Solve the following queries. Make sure to show complete procedure At equal concentrations of Fe²+ and Fe³+, what must [Ag*] be so that the voltage b) of the galvanic cell made from the (Ag¹|Ag) and (Fe³+| Fe²+) electrodes equals zero? (b) Determine the equilibrium constant at 25 °C for the reaction under standard conditions. The reaction for this cell is: Fe²+ +Ag*→Fe³+ +Ag c) If H₂O₂ is mixed with Fe²+, which reaction is more likely: the oxidation of Fe²+ to Fe³+ or the reduction of Fe²+ to Fe? In answering, write the reaction for each possibility and calculate the standard potential of the equivalent electrochemical cell.

1. Solve the following queries. Make sure to show complete procedure At equal concentrations of Fe²+ and Fe³+, what must [Ag*] be so that the voltage b) of the galvanic cell made from the (Ag¹|Ag) and (Fe³+| Fe²+) electrodes equals zero? (b) Determine the equilibrium constant at 25 °C for the reaction under standard conditions. The reaction for this cell is: Fe²+ +Ag*→Fe³+ +Ag c) If H₂O₂ is mixed with Fe²+, which reaction is more likely: the oxidation of Fe²+ to Fe³+ or the reduction of Fe²+ to Fe? In answering, write the reaction for each possibility and calculate the standard potential of the equivalent electrochemical cell.

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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1. Solve the following queries. Make sure to show complete procedure At equal concentrations of Fe²+ and Fe³+, what must [Ag*] be so that the voltage b) of the galvanic cell made from the (Ag+|Ag) and (Fe³+ | Fe²+) electrodes equals zero? (b) Determine the equilibrium constant at 25 °C for the reaction under standard conditions. The reaction for this cell is: Fe²+ +Ag*→Fe³+ +Ag c) If H₂O2 is mixed with Fe²+, which reaction is more likely: the oxidation of Fe²+ to Fe³+ or the reduction of Fe²+ to Fe? In answering, write the reaction for each possibility and calculate the standard potential of the equivalent electrochemical cell.
Transcribed Image Text:1. Solve the following queries. Make sure to show complete procedure At equal concentrations of Fe²+ and Fe³+, what must [Ag*] be so that the voltage b) of the galvanic cell made from the (Ag+|Ag) and (Fe³+ | Fe²+) electrodes equals zero? (b) Determine the equilibrium constant at 25 °C for the reaction under standard conditions. The reaction for this cell is: Fe²+ +Ag*→Fe³+ +Ag c) If H₂O2 is mixed with Fe²+, which reaction is more likely: the oxidation of Fe²+ to Fe³+ or the reduction of Fe²+ to Fe? In answering, write the reaction for each possibility and calculate the standard potential of the equivalent electrochemical cell.
Expert Solution
Step 1

#1: #(b): (a):

Given 

[Fe2+] = [Fe3+] 

half-reactions:

Anode: Fe2+ → Fe3+ + 1e- ; Eoanode = 0.77 V 

Cathode: Ag+ + 1e- → Ag ; Eocathode = 0.80 V 

Number of electrons transferred, n = 1 

 

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