Author Question: Calculate the cell potential for the following unbalanced reaction that takes place in an ... (Read 246 times)

vinney12 · **on:** Nov 18, 2019

Question 1

Calculate the cell potential for the following unbalanced reaction that takes place in an electrochemical cell at 25 °C when [Mg²⁺] = 0.000612 M and [Fe³⁺] = 1.29 M

Mg(s) + Fe³⁺(aq) → Mg²⁺(aq) + Fe(s)

E°(Mg2+/Mg) = -2.37 V and E°(Fe3+/Fe) = -0.036 V

◦ +3.24 V
◦ +3.42 V
◦ +2.43 V
◦ -4.32 V
◦ -3.42 V

Question 2

Calculate the cell potential for the following unbalanced reaction that takes place in an electrochemical cell at 25 °C when [Mg²⁺] = 3.20 M and [Fe³⁺] = 0.000100 M

Mg(s) + Fe³⁺(aq) → Mg²⁺(aq) + Fe(s)

E°(Mg2+/Mg) = -2.37 V and E°(Fe3+/Fe) = -0.036 V

◦ -1.24 V
◦ +1.24 V
◦ -2.24 V
◦ +2.14 V
◦ +2.24 V

aruss1303 · **Reply #1 on:** Nov 18, 2019

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