Electrode potential for Mg electrode varies according to the equation EMg2+/Mg=EMg2+/Mgθ−0.0592log⁡1Mg2+.The graph of EMg2+/MgvSlog⁡Mg2+ is

Electrode potential for Mg electrode varies according to the equation,EMg2+/Mg=EMg2+/Mg∘−0.0592log⁡1Mg2+EMg2+/Mg=EMg2+/Mg∘+0.0592log⁡Mg2+EMg2+/Mg=0.0592log⁡Mg2++EMg2+/Mg∘This equation represents equation of straight line. It can be correlated asEMg2+/Mg=0.0592log⁡Mg2++EMg2+/Mg∘ ↑↑↑↑Ymx+CSo, intercept (C)=EMg2+/Mg