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

Uses of pyrogallol, Uses of pyrogallol (a) As a developer in photograph...

Uses of pyrogallol (a) As a developer in photography. (b) As a hair dye. (c) In medicine of skin diseases like eczema. (d) For absorbing none reacted oxygen in gas ana

Theories of origin of petroleum - hydrocarbon, Theories of origin of petrol...

Theories of origin of petroleum : Theories should describe the following characteristics related with petroleum, Its association along with brine or sodium chloride solution.  T

Rehydration tests for the dried sample, Q. Rehydration tests for the dried ...

Q. Rehydration tests for the dried sample? • gain knowledge about the sensory changes that take place during the dehydration of the samples, and • learn about the effectiv

Negative deviation or positive deviation, Refer to diagram A, which describ...

Refer to diagram A, which describes the system formed by water-ethanol mixtures at 1 atm pressure, but is not drawn to scale.  Industrial ethanol production results in the lowest-b

Calculate the initial radical, (a) Given the values below, calculate the co...

(a) Given the values below, calculate the concentration of benzoyl peroxide required to prepare polystyrene with a number average molar mass of 400,000 by bulk free radical polymer

Explain the molecular basis for the rigor state, 1.  The pH of a 0.02 M sol...

1.  The pH of a 0.02 M solution of an acid was measured as 4.6.              a) What is the [H + ] of the solution?             b) What is the acid dissociation constant K an

REDOX REACTION HALF-REACTION, WRITE HALF-REACTION FOR THE REDOX Fe2+ + MnO...

WRITE HALF-REACTION FOR THE REDOX Fe2+ + MnO4- =Fe3+ + Mn2+

Explain the potential health risk, Question: (a) Explain the potential ...

Question: (a) Explain the potential health risk which composting will pose to workers or to those located near a facility. (b) A number of concerns have been shown in regar

Determine the physical characteristics of milk, Determine the physical char...

Determine the physical characteristics and presence of any additives in the given samples of milk. After undertaking this activity, you will be able to: • identify the phy

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