The standard e-m-f- of the cell involving the reaction- 2Ag-aq - H2g - 2 Ags - 2 H- aq - is 0-80 V- The standard oxidation potential of Ag electrode is -

The correct option is A 0.80 V 2Ag^+(aq) + H_2(g) #160;→ 2 Ag(s) + 2 H^+ (aq) , This is reduction cell of silver ion wrt to hydrogenso for this c ...

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Nernst Equation

The standard ...

Question

The standard e.m.f. of the cell involving the reaction, $2 A g^{+} (a q) + H_{2} (g) \to 2 A g (s) + 2 H^{+} (a q),$ is 0.80 V. The standard oxidation potential of Ag electrode is :

0.80 V

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- 0.80 V

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0.40 V

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0.20 V

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{2 A g}^{+} + H_{2} ⟶ 2 A g + {2 H}^{+}

0.80

△ G^{\circ}

Z n (s) + A g_{2} O (s) + H_{2} O (l) ⇌ Z n^{2 +} (a q) + 2 A g (s) + 2 O H^{-} (a q)

E_{A g^{+} / A g}^{\circ} = + 0.80 V

E_{Z n^{2 +} / Z N}^{\circ} = - 0.76 V

M g_{(s)} + 2 A g_{(a q)}^{+} \to M g_{(a q)}^{2 +} + 2 A g_{(s)}

E_{M g^{2 +} / M g}^{0} = - 2.37 V

E_{A g^{+} / A g}^{0} = 0.80 V

[M g^{2 +}] = 0.001 M; [A g^{+}] = 0.0001 M

A g^{+} (a q .) + e^{-} \to A g (s); E^{\circ} = + 0.80 V

C d^{2 +} (a q .) + 2 e^{-} \to C d (s); E^{\circ} = - 0.40 V

Δ G

Z n_{(s)} + A g_{2} O_{(s)} + H_{2} O_{(l)} \to Z n_{(a q)}^{2 +} + 2 A g_{(s)} + 2 O H^{-}_{(a q)}

E_{{A g}^{+} / A g}^{0} = + 0.80 V

E_{{Z n}^{+ 2} / Z n}^{0} = - 0.76 V

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