1.

Writethe Nernst equation and emf of the following cells at 298 K:(i) Mg(s) | Mg2+(0.001M)|| Cu2+(0.0001M) | Cu(s)(ii) Fe(s) | Fe2+(0.001M)|| H+(1M)|H2(g)(1bar)| Pt(s)(iii) Sn(s) | Sn2+(0.050M) || H+(0.020M) | H2(g)(1 bar) | Pt(s)(iv) Pt(s) | Br2(l)| Br−(0.010M) || H+(0.030M) | H2(g)(1 bar) | Pt(s).

Answer»

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)(1bar)
| Pt(s)


(iii)
Sn(s) | Sn2+(0.050
M) || H+(0.020
M) | H2(g)
(1 bar) | Pt(s)


(iv)
Pt(s) | Br2(l)
| Br−(0.010
M) || H+(0.030
M) | H2(g)
(1 bar) | Pt(s).


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