Osmotic Pressure

Q.

Osmotic pressure of a solution containing 0.1 mole of solute per litre at 273K is (in atm)

1. 
   

2. 
   

3. 
   

4. 
   

Q.

The concentration in gms per litre of a solution of cane sugar (M=342) which is isotonic with a solution containing 6 gms of urea (M = 60) per litre is:

1. 3.42

2. 34.2

3. 5.7

4. 19

Q.

The average osmotic pressure of human blood is 7.8 bar at 37⁰C. What is the concentration of an aqueous NaCl solution that could be used in the bloodstream

1. 0.45mol/L

2. 0.60mol/L

3. 0.15 mol/L

4. 0.32mol/L

Q.

A solution of sucrose (molar mass = 342 g/mol) is prepared by dissolving 68.4 g of it per litre of the solution. What is its osmotic pressure (R = 0.082 lit. atm.k^-1mol^-1) at 273 K?

1. 4.92 atm

2. 5.32 atm

3. 4.04 atm

4. 6.02 atm

Q.

Which of the following solutions has highest osmotic pressure?

1. 1 M sucrose

2. 1 M NaCl

3. 1 M urea

4. 1 M glucose

Q.

The osmotic pressure of a 5% (wt/vol) solution of cane sugar at 150⁰C is

1. 4 atm

2. 2.45 atm

3. 5.078 atm

4. 3.4 atm

Q.

The osmotic pressure of which solution is maximum (consider that deci-molar solution of each is 90% dissociated)

1. Sodium sulphate

2. Aluminium sulphate

3. Barium chloride

4. A mixture of equal volumes of (b) and (c)

Q. A 5% solution of canesugar (mol. wt. = 342) is isotonic with 1% solution of a substance X. The molecular weight of X is

1. 136.8

2. 34.2

3. 171.2

4. 68.4

Q.

In equimolar solution of glucose, NaCl and BaCl₂, the order of osmotic pressure is as follows:

1. NaCl > BaCl₂ > Glucose

2. Glucose > NaCl > BaCl₂

3. BaCl₂ > NaCl > Glucose

4. Glucose > BaCl₂ > NaCl

Q.

If 3 gm of glucose (mol. wt. 180) is dissolved in 60 gm of water at 15⁰C. Then the osmotic pressure of this solution will be

1. 0.34 atm

2. 6.57 atm

3. 0.65 atm

4. 5.57 atm