Osmotic Pressure

IMPORTANT

Osmotic Pressure: Overview

This Topic covers sub-topics such as Reverse Osmosis, Osmotic Pressure, Isotonic Solution, Hypotonic Solution, Hypertonic Solution, Applications of Osmotic Pressure and, Conditions for Determination of Molecular Mass of a Solute Using Osmotic Pressure

Important Questions on Osmotic Pressure

EASY
IMPORTANT

Which of the following colligative property is preferred for the determination of molar masses of solutes in solution?

EASY
IMPORTANT

Which of the following colligative property is preferred for the determination of molar masses of solutes in solution

MEDIUM
IMPORTANT

A living cell contains a solution which is isotonic with 0.3 M sugar solution. What osmotic pressure develops when the cell is placed in 0.1 M NaCl solution at body temperature37°C?

MEDIUM
IMPORTANT

Which of the following 0.1 M aqueous solutions will exert the highest osmotic pressure?

HARD
IMPORTANT

0.05 M solution of K4FeCN6 at 300K is 92% dissociated. Calculate the osmotic pressure of the solution.(R=0.0821 atm LK1mol1)

MEDIUM
IMPORTANT

Calculate the osmotic pressure of 0.01 M solution of urea at 27 °C temperature in atmospheres. (R = 0.0821 L atm K-1 mol-1).

MEDIUM
IMPORTANT

The measured osmotic pressure of a solution prepared by dissolving 17.4mg of K2SO4 in 2 L of water at 27°C is 3.735×10-3 bar. The Van't Hoff factor is R=0.083 L bar K-1 mol-1; atomic weights K=39;S=32;O=16

HARD
IMPORTANT

At 300 K, a decimolar solution of K4Fe(CN)6 dissociates to 50%. The osmotic pressure of the solution is __________

MEDIUM
IMPORTANT

If the pH of a monobasic acid is 2.0 at 25Co, the osmotic pressure of its 0.1 M solution will nearly be equal to

HARD
IMPORTANT

7.6gm KBr in 1250 ml solution was found to have an osmotic pressure of 1.804 atm at 27°C. Calculate degree of dissociation in % (Atomic weight K=39, Br=80)

MEDIUM
IMPORTANT

Osmotic pressure of naphthalene solution at 27°C is 500 mm Hg. When the solution is diluted and temperature is raised to 47°C, osmotic pressure of the solution becomes 105 mm Hg. The extent of dilution approximately is :-

EASY
IMPORTANT

Which of the following statements is false?

EASY
IMPORTANT

The values of gas constant and solution constant

HARD
IMPORTANT

Osmotic pressure of 5% solution of sugar at 25oC is

EASY
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Which of the following is correct regarding osmotic pressure, If π1, π2, π3 and π4 are the osmotic pressures of 5%( wv) solutions of urea, fructose , sucrose and KCl respectively at certain temperatures.

EASY
IMPORTANT

At a temperature of 27oC insulin is dissolved in a suitable solvent and the osmotic pressure π of solutions of various concentrations gm/cm3 "C" is measured . The slope of the plot of "π" against "C" is found to be 4.0×10-3 atm cm3g-1 . What is the molecular weight of insulin g/mol ?

EASY
IMPORTANT

At the same temperature, find out the which solution will be isotonic?

EASY
IMPORTANT

The molar concentration of a solution containing 6 g urea per litre is equal to

HARD
IMPORTANT

1.2575 g sample of [Cr(NH3)6]SO4Cl Mw=251.5 is dissolved to prepare 250 mL solution showing an osmotic pressure of 1.478 atm at 27oC. Which of the following statements is/are correct about this solution?

HARD
IMPORTANT

Question Image

Compartment A and B have the following combinations of the solution:

S.no A B
1 0.1M KCl 0.2M KCl
2 0.1%(m/V) NaCl 0.2%(m/V) NaCl
3 18gL-1 glucose 34.2gL-1 sucrose
4 20%(m/V) glucose 10%(m/V) glucose

The solution in which there will be no change in the level of the solution in compartments A and B if these are separated by semipermeable membrane: