The standard cell potential of the cell shown in the following diagram is +0.22 V. Ni...

 

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The standard cell potential of the cell shown in the following diagram is +0.22 V. Ni | Ni(NO:)2(aq) ||KI(aq)| Hg2l2(s) | Hg() | Pt (i) Formulate half-reactions and write a balanced equation for the overall cell reaction. (ii) Give a sketch of the cell, indicating directions of ionic and electronic flows when the terminals are connected by a metal wire. (iii) Making use the Debye-Hückel limiting law, - log y, = 0.509| z,z |Vī, and the Nernst equation, estimate the potential of the cell if the concentration of the electrolytes in the anode and cathode are 0.01 and 0.05 mol dm3, respectively. The standard cell potential of the cell shown in the following diagram is +0.22 V. Ni | Ni(NO:)2(aq) ||KI(aq)| Hg2l2(s) | Hg() | Pt (i) Formulate half-reactions and write a balanced equation for the overall cell reaction. (ii) Give a sketch of the cell, indicating directions of ionic and electronic flows when the terminals are connected by a metal wire. (iii) Making use the Debye-Hückel limiting law, - log y, = 0.509| z,z |Vī, and the Nernst equation, estimate the potential of the cell if the concentration of the electrolytes in the anode and cathode are 0.01 and 0.05 mol dm3, respectively.