Calculate van't Hoff factor of 0.15 M solution of electrolyte if it freezes at -0.5 K. [ K _ f =1.86 ~K ~kg ~mol ⁻¹ ]

Step-by-step solution

array ll & T _ f = T _ f ^0- T _ f =0-(-0.5 ~K )=0.5 ~K & ~T _ f = i K _ f m & i = T K _ f m = 0.5 ~K 1.86 ~K ~kg ~mol ⁻¹ 0.15 ~mol ~kg ⁻¹ =1.79 array