3,) Consider that the following half reaction is assigned a half cell voltage of

Question

3,) Consider that the following half reaction is assigned a half cell voltage of 0.0o v Hig+2 (aq) + 2e' Hg (l) E" = 0.00 V When this half-cell is paired with each of the following half-cells to form a complete cell easured when the Hg cell is connected to the in the laboratory, the following cell voltages are m (+) terminal, thus acting as the cathode. Hg "Standard" Cell Potentials with Hg/Hg 2. with Hg/Hg2 1.134 V Sn/Sn with Calculate the reduction potentials using this Hg standard cell. 0.99 V a. Ni2 (aq) + 2eNi(s) V (Hg Standard) Sn2 (aq)+ 2 e - Sn(s) V (Hg Standard) 164

Explanation / Answer

3 - From the given cell data,

Eo = Ecathode - Eanode

a) Reduction potential for Ni2+/Ni = -1.134 V

Reduction potential for Sn2+/Sn = -0.99 V

b) For Ni/Ni2+ and Sn/Sn2+ cell,

Eo = -0.136 - (-0.280) = 0.144 V

d) From Sn2+/Sn and Cd2+/Cd cell data,

reduction potential for Cd2+/Cd = 0.403 V (Hg standard)

reduction potential for Cd2+/Cd = -0.136 - 0.267 = -0.403 V (SHE standard)

Related Questions

Navigate

• Browse (All)
• Browse 3
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.