What units is conductivity expressed? Which has higher conductivity, CaCl2 or AlCl3? why?

Question

What units is conductivity expressed? Which has higher conductivity, CaCl2 or AlCl3? why?

Answer 1

Conductivity is defined as 1/resistivity, so the units are Ohm^-1 m^-1.

I take it you mean which of those compounds has a higher conductivity in solution or when molten. Per molecule, AlCl3 is more soluble when molten because there are 4 ions produced per molecule, ions make the current flow, so current can flow more easily with AlCl3.