Electrode potential for Mg electrode varies according to the equation EMg2-Mg- EMg2-Mg- 0-0592log1-Mg2- The graph of EMg2-Mg Vs log-Mg2- is

E_Mg^2+|Mg=0.0592log[M^2+]+E^o_Mg^2+|Mg Graph of E_Mg^2+|Mg V/S log[M^2+] is as follows.Where slope =0.0592 ...

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Nernst Equation

Electrode pot...

Question

Electrode potential for Mg electrode varies according to the equation
$E_{M} g^{2} + | M g$ = $E_{M} g^{2} + | M g^{Θ}$ - $\frac{0.059}{2} l o g \frac{1}{[M g^{2 +}]}$ . The graph of $E_{M g^{2 +} | M g}$ Vs $l o g [M g^{2 +}]$ is

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E_{\frac{M g^{2 +}}{M g}} = E_{\frac{M g^{2 +}}{M g}}^{\circ} - \frac{0.059}{2} l o g (\frac{1}{M g^{2 +}})

E_{\frac{M g^{2 +}}{M g}} v s l o g [M g^{2 +}]

M g (s) | M g^{2 +} (0.2 M) ∥ A g^{+} (1 \times 10^{- 3}) | A g

E_{A g^{+} | A g}^{\circ} = + 0.8 v o l t, E_{M g^{2 +} | M g}^{\circ} = - 2.37 v o l t

M g^{2 +}

0.1 M

M g | M g^{2 +} (1 M) | | P b^{2 +} (1 M) | P b

[E_{(P b / P b^{2 +})}^{0} = 0.14 V, E_{(M g^{2 +} / M g)}^{0} = - 2.37 V]

M g^{2 +}

| M g

Δ G^{o}

27^{\circ} C

M g + C u^{+ 2} ⇌ M g^{+ 2} + C u

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

E_{{C u}^{2 +} / C u} = 0.34 V

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