0 . 004 M K 2 SO 4 solution is isotonic with 0 . 01 M glucose solution. Percentage dissociation of K 2 SO 4 is _____ (Nearest integer)

Step-by-step solution

Osmotic pressure π = iCRT i = Van't Hoff Factor C = Molarity R = Same gas constant T = Temperature For isotonic solutions, osmotic pressure are equal, Hence, we have ( 0 . 004 )   ×   i   =   0 . 01 ⇒ i = 0 . 01 0 . 004 = 10 4 = 5 2 = 1 + 2 α 2 α   =   1 . 5 α   =   0 . 75 %   α   =   75