Home
Class 12
CHEMISTRY
At 25^(@)C, a solution containing 0.2 ...

At `25^(@)C`, a solution containing `0.2 g` of polyisobutylene in `100 mL` of benzene developed a rise of `2.4 mm` at osmotic equilibrium. Calculate the molecular weight of polyisobutylene if the density of solution is `0.88 g// mL`.

Text Solution

Verified by Experts

Height developed `= 2.4 mm`
Osmotic pressure `= h.d.g`
`= (2.4)/(10) xx 0.88 xx 981`
`= 207.187 "dyne" cm^(-2)`
Now `piV = nST`
`207.187 xx 100 = (0.2)/(m) xx 8.314 xx 10^(7) xx 298`
(`R` in erg, `V` in `mL`, using `CGS` system)
`m = 2.39 xx 10^(5)`
Promotional Banner

Topper's Solved these Questions

  • DILUTE SOLUTION AND COLLIGATIVE PROPERTIES

    P BAHADUR|Exercise Exercise 3B Objectice Problems|1 Videos

  • DILUTE SOLUTION AND COLLIGATIVE PROPERTIES

    P BAHADUR|Exercise Exercise 9 Advanced Numerical|12 Videos

  • CHEMICAL KINETICS

    P BAHADUR|Exercise Exercise 9|13 Videos

  • ELECTROCHEMISTRY

    P BAHADUR|Exercise Exercise (9) ADVANCED NUMERICAL PROBLEMS|36 Videos

Similar Questions

Explore conceptually related problems

At 25^(@)C , a solution containing 0.2g of polyisobutylene in 100mL of benzene develpoed a rise of 2.4mm at osmotic equilibrium. Calculate the molecular weight of polyisobutylene if the density of solution is 0.88 g// mL

The osmotic pressure of a solution of a synthetic polyisobutylene in benzene was determined at 25^(@)"C" . A sample containing 0.20 g of solute/100 "cm"^(3) of solution developed a rise of 2.4 mm at osmotic equilibrium. The density of the solution was 0.88"g"//"cm"^(3) . What is the molecular weight of the polyisobutylene?

The molarity of a solution containing 5.0 g of NaOH in 200 mL solution is

A solution containing 4 g of a non-volatile organic solute per 100 mL was found to have an osmotic pressure equal to 500 cm of mercury at 27^(@)C . The molecular weight of solute is

What osmotic pressure would 1.25 molal sucrose solution exhibit at 25^(@)C ? The density of the solution is 1.34 g//ml

The molarity of a solution containing 5.0g of NaOH in 250 mL solution is :