At 298 K, 1000 cm^(3) of a solution coco...

At 298 K, `1000 cm^(3)` of a solution cocontaining 4.34 g solute shows osmotic pressure of 2.55 atm. What is the molar mass of solute ? `(R=0.0821Latm K_(-1)mol^(-1))`

A

`41.64 g mol^(-1)`

B

`82.73 g mol^(-1)`

C

`58.31 g mol^(-1)`

D

`91.65 g mol^(-1)`

Verified by Experts

The correct Answer is:

A

`pi=CRT=(w)/(Mw)xx(1000)/(v(mL))xxRxxT`
`2.55=(4.34)/(Mw)xx(1000)/(1000)xx0.082xx298`
`M_(w)=41.64`

Similar Questions

Explore conceptually related problems

A cane sugar solution has an osmotic pressure of 2.46 atm at 300K . What is the strength of the solution

The molarity of the solution containing 2.8% (mass/volume) solution of KOH is: (Given atomic mass of K=39) is:

Find out the osmotic pressure of 0.25 M aqueous solution of Urea at 27^@ C. (R = 0.082 Lit. atm./mol. K., R = 1.987 Cal.)

The density of a solution containing 13% by mass of sulphuric acid is 1.09 g..ml . Calculate the molarity and normality of the solution.