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Ion-interfering effect on electrode potential

dttom
in Inorganic Chemistry

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Let x be the effective concentration of the ion providing the electrode potential; y be the effective concentration of interfering ion;

and xnx + ne- --> x

 

The resulted emf after ion interference is given by:

E = E0 + (RT/nF)(ln(x+y))

 

So then how could the equation be explained qualitatively?

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