WA10 CH Electroche x What are t x CHEM2 LA LA 10.1 CH net 8 Sousa The Stars and

Question

WA10 CH Electroche x What are t x CHEM2 LA LA 10.1 CH net 8 Sousa The Stars and NS Timeline: Weapons te 4 Easy Ways to Cite a & vocabulary.com (Reference: Chang 18.1) 2. Calculate the standard emfofa cell that uses the Mg/Mg 2 and cucu half-cell reactions at 25ec write the equation for the cell reaction that occurs under standard-state conditions. (10 points) eference: Chang 18.11) 3. Predict whether Fe can oxidize I to I under standard state conditions. (10 points) (Reference: Chang 1813) Copyright o 2016 by Thomas Edison State University. All rights reserved

Explanation / Answer

Ansewer (2)

Now first of all overall magnesium is more active than copper so the overall reaction is

Cu + Mg2 --------> Cu2 + Mg
Cu --------------> Cu2 + 2e
Mg2 + 2e --------> Mg

Cu --------------> Cu2 + 2e (E = +0.35)
Mg2 + 2e --------> Mg (E = -2.36V)

+0.35 + (-2.36) = -2.01V
--------------------------------------...
Mg + Cu2 --------> Mg2 + Cu
Mg --------------> Mg2 + 2e
Cu2 + 2e --------> Cu

Mg --------------> Mg2 + 2e (E = +2.36V)
Cu2 + 2e --------> Mg (E = -0.35V)

+2.36 + (-0.35) = +2.01V

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