Chemistry > Physical Chemistry > Electrochemistry

Write the cell reaction and calculate the e.m.f. of the following cell at 298 K:

$\text{Sn(s)}\,|\,\text{Sn}^{2+}\,(0.004\,\text{M})\,||\,\text{H}^+\,(0.02\,\text{M})\,|\,\text{H}_2\text{(g)}\,(1\,\text{Bar})\,|\,\text{Pt(s)}$

(Given: $E°_{\text{Sn}^{2+}/\text{Sn}} = -0.14$ V, $E°_{\text{H}^+|\text{H}_2\text{(g)},\text{Pt}} = 0.00$ V)