Why is the extraction of copper from pyrites is difficult?, Q)why is the ex...

Q)why is the extraction of copper from pyrites more difficult than that from its oxide ore through reduction? Ans) The Standard free energy of formation of Cu2S is greater than

Electronic configuration for oxygen is correct hunnd rule, Which electronic...

Which electronic configuration for oxygen is correct according to Hund's rule of multiplicity: (1) 1s 2 , 2s 2 , 2p 2 x , 2p 1 y , 2p 1 z                       (2) 1s 2

Equivalent weight, eq. weight of Br in Br2 --> Br- +BrO3-

eq. weight of Br in Br2 --> Br- +BrO3-

Diffraction by solids, DIFFRACTION BY SOLIDS Diffraction performs when ...

DIFFRACTION BY SOLIDS Diffraction performs when a wave interacts with a lattice whose dimensions are of the same order of magnitude as that of the wavelength of the waves. The

Analytical, effeciency of plate of chromotography

effeciency of plate of chromotography

What is half life of reaction and how it can calculated? , Half life of rea...

Half life of reaction refers to as the time during which the concentration of the reactants is reduced to half of the initial concentration or it is the time essential for the comp

Atom of a chemical element, The atomic weight is the weight of an atom of a...

The atomic weight is the weight of an atom of a chemical element.  For instance, the atomic weight of oxygen is 15.9994 and the atomic weight of hydrogen is 1.0079.  Write a script

Physical properties of amino acids, Physical properties of Amino acids ...

Physical properties of Amino acids (a) Amino acids are colourless, crystalline substances comprising sweet taste. They melt along with decomposition at higher temperature (much

Thermodymanics, how to use the heat of fusion in a equation

how to use the heat of fusion in a equation

Thermodaenamics,