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what is molality?
defind:smulting, rosting,physical and chemical method
in an electrophoresis experiment , spherical colloidal particles of diameter 0.5 um are disperside in a solution of 0.10mol per litter nacl , if the particles are observed to cover
How alkanes are prepaired?
hoe to calibrate potentio meter in lab ?
Q. How to calculate atomic mass of an element? Copper survive as a mixture of two isotopes. The lighter isotope (Cu-63) amid 29 protons and 34 neutrons makes up 69.17% of coppe
atoms combine to form molecule because they tend to
The four quantum number for the valence shell electron or last electron of sodium (Z = 11) is: (1) n =1, l= 1, m= -1, s= -1/2 (2) n =3, l=0, m=0, s= +1/2 (3) n =3,
Q. Show the Properties of diborane? Diborane is a colourless gas (b. p., 183K). It is rapidly decomposed by water with the formation of H 3 B0 3 and H 2 : B 2 H, + 6H 2 0 -
How many grams of silica gel and plaster of paris and volume of water is needed to have a preparative TLC?
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