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An electrochemical cell, composed of an iron electrode (anode) immersed in 0.10 M Fe (NO3)2 and...

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Chemistry

An electrochemical cell, composed of an iron electrode (anode)immersed in 0.10 M Fe (NO3)2 and silver electrode (cathode)immersed in 0.11M AgNO3, was found to have a cell potential of1.21V. The standard reduction potential for Ag+ / Ag half-cell is+0.80V. The standard reduction potential for the Fe+2/ Fe half –cell is -0.45V.

1. Write the half-cell reaction at the anode.

2.Write the half –cell reaction at the Cathode

3.Write over all cellreaction

4. Determine the standard cellpotential using the standard reduction potential givenabove.

5. Determine the standard cellpotential using the Nernst equation

Answer & Explanation Solved by verified expert
3.9 Ratings (539 Votes)
Ans 1Oxidation reaction takes place at anode Thus Fe loses twoelectrons and gets converted into Fe2The halfcell reaction can be written as followsAns 2Reduction reaction takes place at cathode Thus Agaccepts an electron to form Ags The halfcell reaction can bewritten as    See Answer
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