The potential of a nitrate-selective electrode in a 0.00045 M solution of potassium nitrate is 63 mV. Calculate the electrode potential in a 0.0006 M solution of the same salt if the slope of the electrode function is 2 mV less than the theoretical value. How will the potential of the electrode change if the addition of sulfate ions to a concentration of 0.0001 M is introduced into this solution. The selectivity coefficient is K (NO3- / SO42-) \u003d 0.0015. Ignore dilution.

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