Chemistry

This problem uses Kohlrausch's Law of Independent Ion Migration: the molar conductivity of a salt is the sum of contributions from its cation and anion, and these contributions are constant regardless of which salt contains them. By treating the given salts as combinations of ions, you can set up equations to find the individual ionic contributions, then recombine them to find $\text{NH}_4\text{OH}$. Think of it as solving a system where each ion has a fixed "conductivity value" that you extract from the known salts, then reassemble for the unknown compound.

This problem uses Kohlrausch's Law of Independent Ion Migration: the molar conductivity of a salt is the sum of contributions from its cation and anion, and these contributions are constant regardless of which salt contains them. By treating the given salts as combinations of ions, you can set up equations to find the individual ionic contributions, then recombine them to find $\text{NH}_4\text{OH}$. Think of it as solving a system where each ion has a fixed "conductivity value" that you extract from the known salts, then reassemble for the unknown compound.