Question #c7e45

3 Answers
May 5, 2017

Answer:

#E_(Zn-Cu) = 1.1.091v @ 25^oC# (Non-Standard Conditions). Typically, calculation of Galvanic Cell Potentials are based upon data published in Reduction Potential Tables at # 25^oC# not #15^oC#.

Explanation:

Using the Nernst Equation and Standard Reduction Potentials for Zinc and Copper, the following is given as method for determining Galvanic Cell Potential at Non-Standard Conditions:
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May 5, 2017

Correction to cell notation...
#"Zn(s)/Zn"^(+2)[0.020M]//Cu^(+2)"[0.01M]/Cu(s)"#
Reduced form of Copper should be at end of notation.

May 5, 2017

Comparing EMF for Zn/Cu Galvanic Cell at 15 deg-C and 25 deg-C.
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