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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 t
why water molecule forms covalent bond even though it dissociates into ions
#question.synthesis , postad date 1/12/2013, australia
Which of the following set of quantum numbers is correct for the 19th electron of chromium: n l m s (a) 3 0
Q. Define functional food? Functional food is a food that has a component incorporated into it to give a specific medical or physiological benefit, other than a purely nutritio
50ml of 0.1M NH 4 OH ,25ml NH 4 Cl weere used to make a buffer . what is the PH is if Pk b is 4.8? Solution) The given buffer is a base buffer [NH4OH] =[(50*0.1)/75] [NH4Cl] =[(
The specific charge of proton is 9.6 X 10 6 CKG -1 then for an α-particle it will be : (1) 38.4X 10 7 Ckg -1 (2) 19.2x 10 7 Ckg -1 (3) 2.4 x 10
need an idea for chemistry project
Q. How to evaluate mass number? An isotope of an element is recognized by its mass number which is the sum of the number of protons and neutrons in the atom's nucleus. Mas
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