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Principle of chromatography - Purification of organic compounds
The method of chromatography is based on the difference in the rates at which the components of a mixture move through a porous medium (called stationary phase) under the influence of some solvent or gas (called moving phase). So, this technique contains two phases- one is a stationary phase of large surface area whereas the second is a moving phase which is permitted to move slowly over the stationary phase. The stationary phase is either a liquid or a solid when the moving phase may be a liquid or a gas.
What is meant by entropy driven reaction? How can a reaction with positive changes of enthalpy and entropy are made entropy driven
Addition polymerization: It involves following three mechanisms: 1. Free radical polymerization 2. Ionic polymerization mechanism 3.
what is free radical mechanisms
what is diagonal relationship? explain diagonal relationship between Li and M g, Be and Al?
Q. What are Native Minerals? These minerals contain the metal in free or elemental state, e.g., copper, silver, gold, platinum and iron. The metals are usually found mixed with
Bond enthalpies The most straightforward measure of the strength of a bond is the energy needed to break it. Estimates of such bond energies are usually obtained from thermo c
are you a pancake
Methane (CH4), or natural gas, is commonly used all over the world as a source of energy and fuel. Many homes in the United States combust methane to generate heat for hot water he
The assignment is basically concerned with the writing of a number of functions which can implement the density theory described above. These functions will then be called by a pro
In a heteronuclear molecule a bond is build between different atoms, and the most important difference from the homonuclear case is that molecular orbitals (MOs) are no longer sh
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