Osmosis and Osmotic Pressure

IMPORTANT

Osmosis and Osmotic Pressure: Overview

This topic covers concepts such as isotonic solution, hypertonic solution, osmosis, semi-permeable membrane and osmotic pressure.

Important Questions on Osmosis and Osmotic Pressure

EASY
IMPORTANT

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

HARD
IMPORTANT

50 mL of 0.2 molal urea solution (density =1.012 g mL-1 at 300 K ) is mixed with 250 mL of a solution containing 0.06 g of urea. Both the solutions were prepared in the same solvent. The osmotic pressure (in torr) of the resulting at 300 K is

[Use : Molar mass of urea =60 g mol-1; gas constant, R=62 L-torr K-1 mol-1;

Assume, ΔmixH=0,Δmix V=0

 

MEDIUM
IMPORTANT

Which one of the following is an isotonic pair of solution?

MEDIUM
IMPORTANT

A glucose solution is to be injected into the blood stream. It must have the same_______ as the blood stream.

MEDIUM
IMPORTANT

Solution of 12 g of non-electrolyte (A) prepared by dissolving it in 1000 mL of water exerts the same osmotic pressure as that of 0.05 M glucose solution at the same temperature. The empirical formula of A is CH2O. The molecular mass of A is ________g. (Nearest integer)

MEDIUM
IMPORTANT

0.004 M K2SO4 solution is isotonic with 0.01 M glucose solution. Percentage dissociation of K2SO4 is _____ (Nearest integer)

MEDIUM
IMPORTANT

Consider the following pairs of solution which will be isotonic at the same temperature. The number of pairs of solutions is/ are _____

A. 1 M aq. NaCl and 2 M aq. urea

B. 1 M aq. CaCl2 and 1.5 M aq. KCl

C. 1.5 M aq. AlCl3 and 2 M aq. Na2SO4

D. 2.5 M aq. KCl and 1 M aq. Al2(SO4)3

MEDIUM
IMPORTANT

Find out the concentration of glucose solution in gram per litre is isotonic to 0.05 M sucrose solution at 5C ?

HARD
IMPORTANT

Osmotic pressure of 30% solution of glucose is 1.20 atm and that of 3.42% solution of cane sugar is 2.5atm. The osmotic pressure of the mixture containing equal volumes of the two solutions will be:

EASY
IMPORTANT

If 3 g of glucose (molar mass =180 g) is dissolved in 60 g of water at 15°C, the osmotic pressure of the solution will be

MEDIUM
IMPORTANT

x%w/v solution of urea is isotonic with 4%w/v solution of a non-volatile solute of molar mass 120 g mol-1. The value of x is

HARD
IMPORTANT

At 0°C, urea solution has an osmotic pressure of 400 mm. On dilution by x times, its osmotic pressure decreased to 100 mm at 20°C. The dilution factor x is approximately

MEDIUM
IMPORTANT

A solution containing 6.0 g of urea is isotonic with a solution containing 10 g of a non-electrolytic solute X. The molar mass of Xin g mol-1 is

EASY
IMPORTANT

Assertion (A) : Blood cells collapse when suspended in saline water

Reason (R): Cell membrane dissolves in saline water

MEDIUM
IMPORTANT

The osmotic pressure of human blood is equal to the osmotic pressure with 0.1 (N) NaCl solution. If the vant half factor of NaCl is 1.82, what
will be the osmotic pressure of the blood at 37 °C?

Round off your answer to the nearest integer

EASY
IMPORTANT

The Osmotic pressure of M1000 aqueous solution of NaCl, Na2SO4 and Fe2(SO4)3 respectively are in the ratio

EASY
IMPORTANT

Which method is used to remove salts from sea water?

EASY
IMPORTANT

Explain why the equimolar solutions of sodium chloride and sodium sulphate are not isotonic?

EASY
IMPORTANT

Given in the figure is the sketch of a plant carrying out a process: Papplied >π

Question Image

(iv) Give one practical use of plant.

EASY
IMPORTANT

Given in the figure is the sketch of a plant carrying out a process: Papplied >π

Question Image

(iii) Name one SPM which can be used in this plant.