EASY

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Osmotic pressure is inversely proportional to the molarity, $C$ of the solution at a given temperature $T$ .

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Important Questions on Solutions

MEDIUM

Chemistry>Physical Chemistry>Solutions>Osmosis and Osmotic Pressure of the Solution

0.1 M

solution of

NaCl

is isotonic with

1.1 w %

urea solution, the degree of ionisation of

NaCl

is (Molar masses of urea and

NaCl

are

60

and

58.5 g {mol}^{- 1}

, respectively.)

HARD

Chemistry>Physical Chemistry>Solutions>Osmosis and Osmotic Pressure of the Solution

Which of the following pairs of solution is isotonic?

(molar mass. urea $= 60$ , sucrose $= 342 g {mol}^{- 1}$ )

MEDIUM

Chemistry>Physical Chemistry>Solutions>Osmosis and Osmotic Pressure of the Solution

T (K)

, which one of the following pairs of solutions is isotonic?

EASY

Chemistry>Physical Chemistry>Solutions>Osmosis and Osmotic Pressure of the Solution

Solutions

A, B, C

and

D

are

0.1 M

glucose,

0.05 M NaCl, 0.05 M {BaCl}_{2}

and

0.1 M {AlCl}_{3}

respectively. Which one of the following pairs is isotonic (at the same temperature)?

MEDIUM

Chemistry>Physical Chemistry>Solutions>Osmosis and Osmotic Pressure of the Solution

A solution is prepared by dissolving 0.6 g of urea (molar mass

= 60 g m o l^{- 1}

) and

1.8 g

of glucose (molar mass

= 180 g m o l^{- 1}

) in 100 mL of water at

27^{o} C .

The osmotic pressure of the solution is:
(

R = 0.08206 L

atm

K^{- 1} m o l^{- 1}

)

EASY

Chemistry>Physical Chemistry>Solutions>Osmosis and Osmotic Pressure of the Solution

Isotonic solutions are solutions having the same

HARD

Chemistry>Physical Chemistry>Solutions>Osmosis and Osmotic Pressure of the Solution

8.9 g

KCl

dissolved in

1 L

of water exhibited an apparent degree of ionization of

0.86

. The osmotic pressure exhibited by this solution is equal to the osmotic pressure of

1 L

glucose solution of unknown concentration. Calculate the glucose solution concentration in

wt . %,

(M . wt . of KCl = 74.5)

EASY

Chemistry>Physical Chemistry>Solutions>Osmosis and Osmotic Pressure of the Solution

Define the following term:

Hypertonic solution

MEDIUM

Chemistry>Physical Chemistry>Solutions>Osmosis and Osmotic Pressure of the Solution

Which of the following sets of solutions of urea

(mol . mass 60 g {mol}^{- 1})

and sucrose

(mol . mass 342 g {mol}^{- 1})

is isotonic?

EASY

Chemistry>Physical Chemistry>Solutions>Osmosis and Osmotic Pressure of the Solution

The size of a raw mango shrinks to a much smaller size when kept in a concentrated salt solution. Which one of the following process can explain this?

EASY

Chemistry>Physical Chemistry>Solutions>Osmosis and Osmotic Pressure of the Solution

The widely used method for desalination of sea water to meet the requirement of potable water is

HARD

Chemistry>Physical Chemistry>Solutions>Osmosis and Osmotic Pressure of the Solution

The observed osmotic pressure for a

0.10 M

solution of

Fe ({NH}_{4})_{2} ({SO}_{4})_{2}

25 ° C

10.8 atm

. The expected and experimental (observed) values of Van't Hoff factor '

i

' will be respectively;

(R = 0.082 L atm k^{-} {mol}^{- 1})

EASY

Chemistry>Physical Chemistry>Solutions>Osmosis and Osmotic Pressure of the Solution

Define: Osmotic pressure

EASY

Chemistry>Physical Chemistry>Solutions>Osmosis and Osmotic Pressure of the Solution

0.02

molar solution of

NaCl

having degree of dissociation of

90 %

27 ° C

has osmotic pressure equal to

EASY

Chemistry>Physical Chemistry>Solutions>Osmosis and Osmotic Pressure of the Solution

Define the following term:

Hypotonic solution

HARD

Chemistry>Physical Chemistry>Solutions>Osmosis and Osmotic Pressure of the Solution

Derive van’t Hoff general solution equation.

EASY

Chemistry>Physical Chemistry>Solutions>Osmosis and Osmotic Pressure of the Solution

Define the following term:

Isotonic solution

MEDIUM

Chemistry>Physical Chemistry>Solutions>Osmosis and Osmotic Pressure of the Solution

Which of the following pair of solutions is isotonic?

MEDIUM

Chemistry>Physical Chemistry>Solutions>Osmosis and Osmotic Pressure of the Solution

The osmotic pressure of a dilute solution of an ionic compound

X Y

in water is four times that of a solution

0.01 M B a C l_{2}

in water. Assuming complete dissociation of the given ionic compounds in water, the concentration of

X Y

(

i n m o l L^{- 1}

) in solution is

EASY

Chemistry>Physical Chemistry>Solutions>Osmosis and Osmotic Pressure of the Solution

The osmotic pressure of solution containing 34.2 g of cane sugar (molar mass =

342 g m o l^{- 1}

in 1L of solution at

20^{o}

C is

(G i v e n, R = 0.082 L a t m K^{- 1} m o l^{- 1})

Osmotic pressure is inversely proportional to the molarity, C of the solution at a given temperature T.

Important Questions on Solutions

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Osmotic pressure is inversely proportional to the molarity, $C$ of the solution at a given temperature $T$ .