Given the E0 values of the following two half-reactions: Zn Ã Zn2+ + 2e-Â Â Â Â Â Â Â Â Â Â Â Â Â Â E0 = 0.763 volt Fe Ã ...

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Chemistry

Given the E⁰ values of the following twohalf-reactions:
Zn Ã Zn²⁺ +2e^-Â Â Â Â Â Â Â Â Â Â Â Â Â Â E⁰ = 0.763 volt
Fe Ã Fe²⁺ +2e^-Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â E⁰ = 0.441 volt
a)Write a balanced completeoxidation-reduction reaction?
b)Explain whether the corrosion ofan iron pipe (i.e., Fe Fe²⁺) in the presence ofZn/Zn²⁺ is possible or not (thermodynamically)?
c)Explain whether or not Zn willprotect the corrosion of iron pipe if metallic Zn is in contactwith the iron pipe?

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4.1 Ratings (572 Votes)

The electrochemical series is built up by arranging variousredox equilibria in order of their standard electrode potentialsredox potentials The most negative E values are placed at thetop of the electrochemical series and the most positive at thebottomMetals at the top of See Answer

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