ameyl

31.08.2019 • 

Chemistry

Avoltaic cell consists of a nickel electrode in a solution containing ni2+ ions, and a copper electrode in a solution containing cu2+ ions. which is the cell potential? a. e subscript c e l l space end subscript superscript 0 space end superscript equals minus 0.59 v b. e subscript c e l l space end subscript superscript 0 space end superscript equals plus 0.59 v c. e subscript c e l l space end subscript superscript 0 space end superscript equals minus 0.09 v d. e subscript c e l l space end subscript superscript 0 space end superscript equals plus 0.09 v

Ответ:

AnnaValentine2764

01.01.2022

Chemistry

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First, we write the half equations for the reduction of the chemical species present:

Cu⁺² + 2e → Cu; E° = 0.34 V
Ni⁺² + 2e → Ni; E° = - 0.23 V

In order to determine the potential of the cell, we find the difference between the two values. For this:

E(cell) = 0.34 - (-0.23)
E(cell) = 0.57 V

The second option is correct. (The difference in values is due to different values in literature, and it is negligible)

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Ответ:

cocoapop

03.07.2021

Chemistry

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life can be boring that's why the world has puppies

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