For a Mg|Mg^{2+}_{(aq)}||Ag^{+}_{(aq)}|Ag cel | vedclass

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Question

(A) The cell reaction for $Mg|Mg^{2+}_{(aq)}||Ag^{+}_{(aq)}|Ag$ is $:$ $Mg_{(s)} + 2Ag^{+}_{(aq)} \rightarrow Mg^{2+}_{(aq)} + 2Ag_{(s)}$ Here,the num

Vedclass · Accepted Answer

$E_{	ext{cell}} = E_{	ext{cell}}^{o} - \frac{RT}{2F} \ln \frac{[Mg^{2+}]}{[Ag^{+}]^2}$

Vedclass · Answer

(A) The cell reaction for $Mg|Mg^{2+}_{(aq)}||Ag^{+}_{(aq)}|Ag$ is $:$ $Mg_{(s)} + 2Ag^{+}_{(aq)} ightarrow Mg^{2+}_{(aq)} + 2Ag_{(s)}$ Here,the number of electrons transferred $n = 2$. The reaction quotient $Q$ is given by $Q = \frac{[Mg^{2+}]}{[Ag^{+}]^2}$. According to the Nernst equation $:$ $E_{	ext{cell}} = E_{	ext{cell}}^{o} - \frac{RT}{nF} \ln Q$ Substituting the values $:$ $E_{	ext{cell}} = E_{	ext{cell}}^{o} - \frac{RT}{2F} \ln \frac{[Mg^{2+}]}{[Ag^{+}]^2}$ Thus,the correct option is $A$.

For a $Mg|Mg^{2+}_{(aq)}||Ag^{+}_{(aq)}|Ag$ cell,the correct Nernst Equation is $:$

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