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State Kohlrausch's law. Molar conductivi...

State Kohlrausch's law. Molar conductivity at infinite dilution of `NH_4Cl`, NaOH and NaCl solution at 298K are 110, 100 and `105 Scm^2 mol^-1` respectively. Calculate the molar conductivity of `NH_4OH` solution.

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