x % w / v solution of urea is isotonic with 4 % w / v solution of a non-volatile solute of molar mass 120 g mol - 1 . The value of x is

Step-by-step solution

Two solutions having same osmotic pressure at a given temperature are called isotonic solutions. When such solutions are separated. π = CRT π = Osmotic pressure C=Concentration in molarity R=Universal gas constant T=Temperature As the solutions are isotonic π urea = π X C urea = C X X % solution of urea means X grams of urea in 100 mL of the solution. 4 % non-volatile solute contains 4 grams of solute in 100 mL of the solution W urea M urea × 1000 V urea = W M × 1000 V X 60 × 1000