$15 \%$ aqueous solution of glucose (molecular weight $= 180 \ g/mol$) is isotonic with $8 \%$ aqueous solution containing an unknown non-dissociable solute. What is the molecular weight of the unknown solute?

At a constant temperature,the osmotic pressures of a $1.5 \ M \ NH_4NO_3$ aqueous solution and an $x \ M \ Al_2(SO_4)_3$ aqueous solution are approximately equal. Find the value of $x$. (Assume $100 \%$ dissociation of the solute in the solution.)

Which of the following solutions does not flow in either direction when separated by a semipermeable membrane? (Molar mass: glucose $= 180 \ g \ mol^{-1}$,urea $= 60 \ g \ mol^{-1}$)

$A$ solution containing $10 \ g$ of urea (molar mass $= 60 \ g \ mol^{-1}$) per liter is isotonic with a $5 \% \ w/v$ solution of a non-volatile solute. The molar mass of the non-volatile solute is ......... $g \ mol^{-1}$.

Which statement is wrong regarding osmotic pressure $P$,volume $V$,and temperature $T$?

$A$ semipermeable membrane used in the measurement of osmotic pressure of a solution allows the passage of