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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.
Fig.1. Schematic diagram of the apparatus for measuring osmotic pressure. (a) Apparatus at the start of the measurement; (b) apparatus at equilibrium
Q. Explain about Extraction of metals? Extraction of metals is very often done by complex formation. For example, the cyanide process for the extraction of silver and gold is w
If change in energy (ΔE) = 3x 10 -8 j, h= 6.64x 10 -34 j-s and c= 3x 10 8 m/s then wavelength of the light is: (1) 6.36x 10 3 Å (2) 6.36x 10 5 Å
What is variation method and give me an example?
One step in the preparation of nicotine sulfate from tobacco is the extraction of nicotine from aqueous solution by kerosene. The table below shows equilibrium data for the distri
OSCILLATOR THEORY OF LIQUID
The gas stream from a sulfur burner is composed of 15-mol% SO 2 , 20-mol% O 2 , and 65-mol% N 2 . This gas stream at 1 bar and 680°C enters a catalytic converter, where the SO 2
markonise and anti markonise
Which one of the following set of quantum numbers is not possible for 4p electron : (1) n=4, l=1, m=-1, s= +1/2 (2) n=4, l=1, m=0, s= +1/2 (3) n=
Coupling reaction - Miscellaneous reactions Phenol couples along with benzene diazonium chloride in existence of an alkaline solution to make a red dye (p-hydroxy azobenzene).
Symmetry is a property of molecules having more than one atom of the same kind, with equal bond lengths and/or bond angles. As like the high symmetry of the SF6 molecule (Fig. 1. a
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