\(Ti^{2+}\) \(-0.37\)
\(V^{2+}\) \(-0.26\)
\(Cr^{2+}\) \(-0.41\)
\(Mn^{2+}\) \(+1.57\)
Negative value of \(E^o\) means these metals librate hydrogen from dilute acid.
\(({M^{2 + }}\, + \,2{H^ + }\, - \,{e^ - }\, \to \,{M^{3 + }}\, + \,{H_2})\)
${Cu}_{({s})}+2 {Ag}^{+}\left(1 \times 10^{-3} \,{M}\right) \rightarrow {Cu}^{2+}(0.250\, {M})+2 {Ag}_{({s})}$
${E}_{{Cell}}^{\ominus}=2.97\, {~V}$
ઉપરની પ્રક્રિયા માટે ${E}_{\text {cell }}$ $=....\,V.$ (નજીકના પૂર્ણાંકમાં)
[આપેલ છે: $\log 2.5=0.3979, T=298\, {~K}]$
$Ag$ , $Ni$ , $Cr$
$[\Lambda_{\mathrm{H}^{+}}^{\circ}=350 \,\mathrm{~S}\, \mathrm{~cm}^{2}\, \mathrm{~mol}^{-1},\Lambda_{\mathrm{CH}_{3} \mathrm{COO}^{-}}^{\circ}=50\, \mathrm{~S}\, \mathrm{~cm}^{2}\, \mathrm{~mol}^{-1}]$