At $300 \ K$, a one litre solution of sucrose (molecular weight: $342$) was prepared by dissolving $40 \ g$ of sucrose. What is the approximate osmotic pressure (in $kPa$) of the solution at the same temperature? $(R = 8.314 \times 10^6 \ cm^3 \ Pa \ K^{-1} \ mol^{-1})$

The osmotic pressure of $1 \, M$ solution at $27 \, ^\circ C$ is ........... $atm$.

$0.6 \ g$ of a solute is dissolved in $0.1 \ L$ of a solvent which develops an osmotic pressure of $1.23 \ atm$ at $27 \ ^\circ C$. The molecular mass of the substance is ........ $g \ mol^{-1}$.

Osmotic pressure of a solution can be measured quickly and accurately by

Which of the following statements associated with an isotonic solution is not correct?

The osmotic pressure of a living cell is $12 \ atm$ at $300 \ K$. The strength of sodium chloride solution that is isotonic with the living cell at this temperature is $...... \ g \ L^{-1}$. (Nearest integer)
Given : $R = 0.08 \ L \ atm \ K^{-1} \ mol^{-1}$
Assume complete dissociation of $NaCl$
(Given : Molar mass of $Na$ and $Cl$ are $23$ and $35.5 \ g \ mol^{-1}$ respectively.)