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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
write the chemical properties of aromatic compounds.
Cathode rays have
In a multi-electron atom, which of the following orbitals described by the three quantum members will have the same energy in the absence of magnetic and electric fields: (1)n=
Illustrate with examples: (a) Lyophilic and Lyophobic sols (b) Multimolecular and Macromolecular colloids (c) Homogeneous and Heterogeneous catalysis.
FTIR instrumentation
define
How to determine the hybridization of a complex compound in a easy way? Generally d-block elements have tendency to form coordination compounds. from at. no. 21 .i.e scandi
priming and foaming
Polyglycolic acid (PGA) : It is acquired by the chain polymerisation of cyclic dimer of glycolic acid, OH-CH2-COOH.
Q. Explain Kinetic Molecular Theory? Ans. The Kinetic Molecular Theory can be used to explain the properties of liquids and solids, as well as gases. As the following di
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