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

STUDYING, HOW TO PREPARE IN EXAMS IN EASY MANNER?

HOW TO PREPARE IN EXAMS IN EASY MANNER?

Lab report, Criteria for determining the purity of organic compounds

Criteria for determining the purity of organic compounds

The expression for bohr''s radius of an atom is, The expression for Bohr's ...

The expression for Bohr's radius of an atom is: (1) r= n 2 h 2 / 4 Π 2 me 4 z 2                         (2) r= n 2 h 2 / 4 Π me 2 z 2           (3) r=  n2h2/4 Π me 3

Nmr, Draw C5H10O2 that has the following 1H NMR spectrum: 1.15 (t, 3 H), 1....

Draw C5H10O2 that has the following 1H NMR spectrum: 1.15 (t, 3 H), 1.25 (t, 3 H), 2.33 (q, 2 H), 4.13 (q, 2 H).

Colloides, difference between organic & inorganic colloides ?

difference between organic & inorganic colloides ?

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)

Monosaccharides - biomolecules, Monosaccharides - Biomolecules These ar...

Monosaccharides - Biomolecules These are very simple one unit non-hydrolysable sugars. They have the common formula C n H 2n O n where n changes from 3 to 9 carbon molecules.

PH, Calculate the pH of 0.100 L of a buffer solution that is 0.22M in HF an...

Calculate the pH of 0.100 L of a buffer solution that is 0.22M in HF and 0.53M in NaF

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