The EMF of the cell, Mg$|$Mg$^{2+}$ (0.01 M) $||$ Ag$^+$ (0.0001 M) $|$ Ag is: (Given $E^\circ_{Mg^{2+}/Mg} = -2.37$ V, $E^\circ_{Ag^+/Ag} = +0.80$ V)