grade 12 chemistry

- This is a representative list of topics covered in our Grade 12 Chemistry program - however all programs will be customized for the individual studen..

What we have on the filter paper is the 'chromatograms' for different dyes as well as for the black ink. It may happen that black ink may produce many layers of colours. With the help of this chromatogram, we can compare and find out if any of the dyes used are part of the black ink. Instead of usi..

2 ClCH 2 Cl It is prepared by, The addition of chlorine to ethene The action of HCl, PCl 5 or SOCl 2 on 1,2-ethane diol. ..

A dihydric alcohol, ethanediol is prepared commercially by acid hydrolysis of epoxy ethane (ethylene oxide..

Calculation of Order of a Reaction from t 1/2 Values - A reaction is carried out at two different initial concentrations of a reactant [A], that is [A] 0 , 1 and [A] 0 , 2 and the respective t 1 / 2 values (t 1 / 2 ) and (t 1 / 2 ) 2 are obtained. The order of the reaction can be calculat..

Maltose is made up of two a -D-glucose (in pyranose form) units held together by a (1 4) glycosidic bond. As there is a free aldehyde group at C-1 position of the second glucose molecule, maltose is known as reducing sugar. Maltose forms osazones. The enzyme that hydrolyses maltose is maltase. The ..

Nuclear Chemistry..

Nuclear Chemistry..

Surface Chemistry..

..