Weak Acid Molar Conductivity
Molar conductivity of a weak acid HQ of concentration 0.18 M was found to be 1/30 of the molar conductivity of another weak acid HZ with concentration of 0.02 of M. If

happened to be equal with

, the the difference of the pK
a values of the two weak acids (pK
a(HQ)–pK
a(HZ)) is _______ (Nearest integer).
[Given : degree of dissociation (α) << 1 for both weak acids, λ° : limiting molar conductivity of ions]