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

Strengths of phenols - hydrocarbon, Strengths of Phenols - Hydrocarbon ...

Strengths of Phenols - Hydrocarbon The comparative strengths of some phenols (as acids) are like this: p-Nitrophenol > o-Nitrophenol > m- Nitrophenol > Phenol Presence of

Show the colorimetric analysis, Q. Show the Colorimetric analysis? Colo...

Q. Show the Colorimetric analysis? Colorimetric analysis depends on the variation of the colour with the change in concentration of the compound. Usually, absorption of light i

The positive charge of an atom, The positive charge of an atom is: (1) ...

The positive charge of an atom is: (1) Spread all over the atom    (2) Distributed around the nucleus  (3)Concentrated at the nucleus (4) All of these Ans: Concentr

Water treatment, how to know which salt causes scale formation and which on...

how to know which salt causes scale formation and which one for sludge formation

States of matter, A sample of gas occupies 10l under a pressure of 1atm. wh...

A sample of gas occupies 10l under a pressure of 1atm. what will be its volume if the pressure is increased to 2atm ? assuming that temperature of the gas sample does not change

Equivalent weight, how to calculate equivalent weight of given substance? l...

how to calculate equivalent weight of given substance? like K2C2O2.H2O

Analytical chemistry, What is T in the indicator Eriochrome Black-T used fo...

What is T in the indicator Eriochrome Black-T used for the determination of hardness of water?

Define and classify alkanes, Question 1 Write a short note on the followin...

Question 1 Write a short note on the following Photoelectric effect Transition Elements Hydrogen bonding Standard entropy Question 2 What are aromatic acids

When beta-particles are sent through a tin metal foil, When β  -particles a...

When β  -particles are sent through a tin metal foil, most of them go straight through the foil as : (1)β  -particles are much heavier than electrons (2) β -particles are po

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