$A$ solution of $8 \ g$ of a certain organic compound in $2 \ dm^3$ of water develops an osmotic pressure of $0.6 \ atm$ at $300 \ K$. Calculate the molar mass of the compound. $\left[R = 0.082 \ atm \ dm^3 \ K^{-1} \ mol^{-1}\right]$
- A$148 \ g \ mol^{-1}$
- B$164 \ g \ mol^{-1}$
- C$172 \ g \ mol^{-1}$
- D$180 \ g \ mol^{-1}$
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$A$ $1\% \ (wt/vol) \ KCl$ solution is ionised to the extent of $80\%$. The osmotic pressure at $27 \ ^oC$ of the solution will be .......... $atm$.
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View SolutionIf a $5.25\% \, w/v$ solution of a substance is isotonic with a $1.5\% \, w/v$ solution of urea $(Molar \, mass = 60 \, g \, mol^{-1})$ in the same solvent,then the molar mass of the substance is ........ $g \, mol^{-1}$. (in $.0$)
Medium
View Solution$1.46 \, g$ of a biopolymer dissolved in a $100 \, mL$ water at $300 \, K$ exerted an osmotic pressure of $2.42 \times 10^{-3} \, bar$.
The molar mass of the biopolymer is $..... \times 10^{4} \, g \, mol^{-1}$. (Round off to the Nearest Integer)
[Use : $R = 0.083 \, L \, bar \, mol^{-1} \, K^{-1}$ ]
The molar mass of the biopolymer is $..... \times 10^{4} \, g \, mol^{-1}$. (Round off to the Nearest Integer)
[Use : $R = 0.083 \, L \, bar \, mol^{-1} \, K^{-1}$ ]
DifficultJEE MAIN 2021
View SolutionWhich of the following pairs of solutions is isotonic?
At $27^{\circ}C$, $0.1 \ M$, $1 \ L$ $K_4[Fe(CN)_6]$ aqueous solution and $0.1 \ M$, $1 \ L$ $FeCl_3$ aqueous solution are placed in a container separated by a semi-permeable membrane $AB$. Assume complete dissociation of both the solutes. Which of the following statements is correct?
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