The \( \mathrm{EMF} \) and the standard \( \mathrm{EMF} \) of a cell in the following reaction i...

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The \( \mathrm{EMF} \) and the standard \( \mathrm{EMF} \) of a cell in the following reaction is \( 5 \mathrm{~V} \) and \( 5.06 \mathrm{~V} \) at room temperature.
\( \mathrm{Ni}_{(\mathrm{s})}+2 \mathrm{Ag}_{(\mathrm{aq})}^{+}(\mathrm{nM}) \rightarrow \mathrm{Ni}_{(\mathrm{aq})}^{2+}(0.02 \mathrm{M})+2 \mathrm{Ag}_{(\mathrm{s})} \)
What is the concentration of \( \mathrm{Ag}^{+} \)ion?
(A) \( 0.0125 \mathrm{M} \)
(B) \( 0.0314 \mathrm{M} \)
(C) \( 0.0625 \mathrm{M} \)
(D) \( 0.0136 \mathrm{M} \)
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