principles of chemistry help

The principle behind this technique is the differential adsorption of the various components of a mixture between two different phases that are as follow..

The magnetic component of the mixture is separated with the help of the magnetic attractio..

A molten metal when gradually cooled, crystallizes into ultra pure metal. The impurities continue to be in the molten state and flow away from the crystallized metal. Zone Refini..

The phosphorus present in an organic compound is oxidized to phosphoric acid by heating with fuming nitric acid. The phosphoric acid so obtained is precipitated as MgNH 4 PO 4 , which on ignition is converted into Mg 2 P 2 O 7 . From the mass of Mg 2 P 2 O 7 , the mass of phosphorus present in the..

Carbon and hydrogen are detected by heating the organic compound with cupric oxide (CuO) strongly, where carbon is oxidized to carbon dioxide and hydrogen to water. Carbon dioxide is tested by lime water test, whereas water is tested by anhydrous copper sulphate test. Fig:16.14 Detection of ca..

Biogas is produced as a result of anaerobic decomposition of biomass in the presence of wate..

Thermal cracking of kerosen..

Sulphur has a low melting point of about 112 o C - 115 o..

Difference in the densities of the ore and gangue particle..

Difference in the magnetic properties of the ore and gangue particle..