$A$ $3\% \, w/v$ aqueous solution of urea is isotonic with a $5\% \, w/v$ aqueous solution of another solute. Assuming the van't Hoff factor for the solute is $1.0$,calculate the molar mass of the solute in $g/mol$.

Which colligative property is most suitable for the determination of the molar mass of polymers?

If $A$ contains $2\% \ NaCl$ and it is separated by a semipermeable membrane from $B$ which contains $10\% \ NaCl$,which event will occur?

$200 \ mL$ of an aqueous solution of a protein contains its $1.26 \ g$. The osmotic pressure of this solution at $300 \ K$ is found to be $2.57 \times 10^{-3} \ bar$. The molar mass of protein will be ......... $g \ mol^{-1}$.
$(R = 0.083 \ L \ bar \ mol^{-1} \ K^{-1})$

What is osmotic pressure? Explain and derive its equation.

Assertion : If red blood cells were removed from the body and placed in pure water,pressure inside the cells increases.
Reason : The concentration of salt content in the cells increases.