If molecule of NaCl is heavier than a molecule of NaOH and NaOH is heavier than a molecule of HCl, can you explain the different conductivites you observed for these compounds?

Answer 1

You have presumably calculated conductivities so that it is the conductivity of a volume of electrolyte containing 1 mole of dissolved substance?

As each of the compounds have different RMM then the conductivities will reflect this.

Answer 2

nh3 has high b.p. than phz give resion