Equivalent conductance at infinite dilution, λ0 of NH4Cl, NaOH and NaCl are 128.0, 217.8 and 109.9 ohm−1cm2eq−1 respectively. The equivalent conductance of 0.01 N NH4OH is 9.30 ohm−1cm2eq−1, then the degree of ionization of NH4OH at this temperature would be:
Equivalent conductance of 1 M propanoic acid is 10 ohm−1 cm2 eq−1 and that at infinite dilution 200 ohm−1 cm2 eq−1 . The pH of the propanoic acid solution is: