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Types of chromatography- Purification of organic compounds
Depending on the nature of the stationary and the mobile phases, the different types of chromatographic methods generally used are in a given table,
Column chromatography or adsorption
Liquid/Solid
Large scale separations
Thin-layer chromatography
Qualitative analysis (identification and characterization of organic compounds)
High performance liquid chromatography
Qualitative and quantitative analysis
Gas-liquid chromatography (GLC)
Gas/Liquid
Partition chromatography or ascending paper chromatography
Liquid/Liquid
Qualitative and quantitative analysis of polar organic compounds (sugars, α-amino acids and inorganic compounds)
It is constant for a specific substance (component) within a given set of conditions. Hence, it is possible to identify the several components by determining their Rf values.
applications of potentiometry
Preparation of alkane
The nucleus of tritium contains: (1) 1 proton + 1 neutron (2) 1 proton + 3 neutron (3) 1 proton + 0 neutron (4)1 proton + 2 neutron An
1 gm of a metallic oxide on reduction gives 0.68 gm of the metal. ans) Mass of metal/mass of oxygen=eq. mass of metal/eq. mass of oxygen. applying this we get .68/.32=x/8 x=1
Both of the MOs have the nodes of the original 2p orbitals, which merge into a one node because the nodal plane is common to both orbitals. The antibonding MO has in addition a
Calculate how much heat energy is required to raise the temperature of a cube of copper of side 2cm. from 300 to 320k. given: density=8933kg/m cube , atomic weight=63.55, cp=24j/k/
What is differences by alkali metal and alkaine earth metal which provided colour
Nucleophilic addition reactions (i) Carbonyl compounds give nucleophilic addition reaction along with those reagents which on dissociation give electrophile also nucleophile.
jack prepared copper(11) sulphate by adding a metal oxide to the acid. jill prepared sodium chloride by acid/alkali reaction. name the metal oxide and acid jack would use to mak
physical properties of acetic anhydride
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