Write the Nernst equation and emf of the following cells at 298 K: (i)

1.	Write the Nernst equation and emf of the following cells at 298 K: (i) Mg(s)\|Mg2+(0.001M)\|\|Cu2+(0.001M)\|Cu(s) (ii) Fe(s)\|Fe2+(0.001M)\|\|H+(1M)\|H2(g)(1 bar)\|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−(0.010M)\|\|H+(0.030M)\|H2(g)(1bar\|Pt(s)) E∘(Mg2+Mg)=−2.37V;E∘(Cu2+Cu)=+0.34V;E∘(Fe2+Fe)=−0.44V;E∘(Sn2+Sn)=−0.14V;E∘(1Br2Br−)=+1.08V,
Answer» Write the Nernst equation and emf of the following cells at 298 K: (i) $M g (s) \| M g^{2 +} (0.001 M) \| \| C u^{2 +} (0.001 M) \| C u (s)$ (ii) $F e (s) \| F e^{2 +} (0.001 M) \| \| H^{+} (1 M) \| H_{2} (g) (1 b a r) \| P t (s)$ (iii) $S n (s) \| S n^{2 +} (0.050 M) \| \| H^{+} (0.020 M) \| H_{2} (g) (1 b a r) \| P t (s)$ (iv) $P t (s) \| B r_{2} (l) \| B r^{-} (0.010 M) \| \| H^{+} (0.030 M) \| H_{2} (g) (1 b a r \| P t (s))$ $E_{(\frac{M g^{2 +}}{M g})}^{\circ} = - 2.37 V; E_{(\frac{C u^{2 +}}{C u})}^{\circ} = + 0.34 V; E_{(\frac{F e^{2 +}}{F e})}^{\circ} = - 0.44 V; E_{(\frac{S n^{2 +}}{S n})}^{\circ} = - 0.14 V; E_{(\frac{\frac{1}{B r_{2}}}{B r^{-}})}^{\circ} = + 1.08 V,$

Write the Nernst equation and emf of the following cells at 298 K: (i) Mg(s)|Mg2+(0.001M)||Cu2+(0.001M)|Cu(s) (ii) Fe(s)|Fe2+(0.001M)||H+(1M)|H2(g)(1 bar)|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−(0.010M)||H+(0.030M)|H2(g)(1bar|Pt(s)) E∘(Mg2+Mg)=−2.37V;E∘(Cu2+Cu)=+0.34V;E∘(Fe2+Fe)=−0.44V;E∘(Sn2+Sn)=−0.14V;E∘(1Br2Br−)=+1.08V,

Answer»

Write the Nernst equation and emf of the following cells at 298 K:

(i) $M g (s) | M g^{2 +} (0.001 M) | | C u^{2 +} (0.001 M) | C u (s)$

(ii) $F e (s) | F e^{2 +} (0.001 M) | | H^{+} (1 M) | H_{2} (g) (1 b a r) | P t (s)$

(iii) $S n (s) | S n^{2 +} (0.050 M) | | H^{+} (0.020 M) | H_{2} (g) (1 b a r) | P t (s)$

(iv) $P t (s) | B r_{2} (l) | B r^{-} (0.010 M) | | H^{+} (0.030 M) | H_{2} (g) (1 b a r | P t (s))$

$E_{(\frac{M g^{2 +}}{M g})}^{\circ} = - 2.37 V; E_{(\frac{C u^{2 +}}{C u})}^{\circ} = + 0.34 V; E_{(\frac{F e^{2 +}}{F e})}^{\circ} = - 0.44 V; E_{(\frac{S n^{2 +}}{S n})}^{\circ} = - 0.14 V; E_{(\frac{\frac{1}{B r_{2}}}{B r^{-}})}^{\circ} = + 1.08 V,$

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