Osmotic pressure, Chemistry

Assignment Help:

Osmotic pressure:

Osmosis process is the movement of a solvent from a solution of lower solute concentration (higher solvent concentration) to one of the higher solute concentration (lower solvent concentration). In osmotic pressure measurements a semi-permeable membrane. It is permeable only to solvent (as it have holes that are small enough to prevent large solute molecules passing through) separates two liquids. This means that this technique is used for relatively large molecules, often polymers or biological macromolecules. Typically, one liquid is pure water and the other is the solute solutions of interest. This produces a flow of water from the solvent to the solute solutions. The experimental apparatus (Fig. 1) incorporates one for each liquid, two identical vertical columns, and the height of the liquid in the solution columns increase relative to that in the pure solvent column due to this net flow.

 

2065_osmotic pressure.png

Fig.1. Schematic diagram of the apparatus for measuring osmotic pressure. (a) Apparatus at the start of the measurement; (b) apparatus at equilibrium


Related Discussions:- Osmotic pressure

The highest covalent character, Highest covalent character is found in: ...

Highest covalent character is found in: (a1  CaF 2                                              (2) CaCl 2               (3) CaBr 2                              (4)

F block elements, why f elememnts kept sepertaly in periodic table

why f elememnts kept sepertaly in periodic table

Phosphate conditioning, Q.   Write phosphate conditioning method for water ...

Q.   Write phosphate conditioning method for water softening with suitable chemical reactions. How it is different from soda lime method. Ans.  Phosphate condition

The metal atom tends, What metals combine with non-metals, the metal atom t...

What metals combine with non-metals, the metal atom tends to: (1) Lose electrons     (2) Gain electrons (3) Remain electrically neutral (4)

Test of proteins - xanthoproteic test, Test of proteins - Xanthoproteic tes...

Test of proteins - Xanthoproteic test Xanthoproteic test : A few proteins give yellow colour along with concentrated nitric acid (formation of yellow stains on fingers when wor

Graham''s law, a nitrogen molecule travel at about 505 m/s at room temperat...

a nitrogen molecule travel at about 505 m/s at room temperature. find the velocity of a helium atom at the same temperature

General tests of esters, General Tests of Esters (a) Esters has sweet s...

General Tests of Esters (a) Esters has sweet smell (b)  Esters is neutral towards litmus (c) A pink colour is developed while one or two drops of phenolphthalein are adde

Pollution, explain how adsorption as a method of water treatment

explain how adsorption as a method of water treatment

Solvent extraction, role of modifiers in solvent extraction of metal ion

role of modifiers in solvent extraction of metal ion

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd