Question

What is osmolarity of a 0.20 M KCl sol ?

Answer 1

Answer:

Osmolarity of a solute=molarity*number of particles produced per mole of the compound

M=0.20M

Kcl----------->$K^{+} +Cl^{-}$

Total number of moles produced=2 moles

so osmolarity=0.20*2

                     =0.40 osmol Kcl