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Author Question: Consider an electrochemical cell with a zinc electrode immersed in 1.0 M Zn2+ and a nickel electrode ... (Read 204 times)

charchew

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Question 1

Consider an electrochemical cell with a zinc electrode immersed in 1.0 M Zn2+ and a silver electrode immersed in 1.0 M Ag+.

    Zn2+ + 2e→ Zn        E° = –0.758 V

    Ag+ + e→ Ag          E° = 0.800 V

Calculate E° for this cell.


0.042 V
–0.042 V
1.558 V
–1.558 V
None of these are correct.

Question 2

Consider an electrochemical cell with a zinc electrode immersed in 1.0 M Zn2+ and a nickel electrode immersed in 0.10 M Ni2+.
Zn2+ + 2e-→ Zn
E° = –0.76 V
Ni2+ + 2e-→ Ni
E° = –0.23 V
  

 Calculate the concentration of Ni2+if the cell is allowed to run to equilibrium at 25°C.

Reference: Ref 18-4


1.10 M
0.20 M
0.10 M
0 M
None of these are correct.


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Marked as best answer by charchew on Mar 21, 2021

mammy1697

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charchew

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Reply 2 on: Mar 21, 2021
:D TYSM


phuda

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Reply 3 on: Yesterday
Excellent

 

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