Question

3.5
Write the Nernst equation and emf of the following cells at 298 K:
(i) Mg(s) | Mg2(0.001M) || Cu2+(0.0001 M) Cu(s)
(ii) Fe(s)[Fe2+(0.001M) || H*(1M) [H2(g(lbar)! Pt(s)
(iii) Sn(s)[Sn2+(0.050 M) || H*(0.020 MTH (g) (1 bar) | Pt(s)
(iv) Pt(s) | Br,(l) | Br (0.010 M) || H*(0.030 M)| H,g) (1 bar) | Pt(s).​

Answer 1

option iii) is correct

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