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.

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Chapter1: Chemical Foundations
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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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