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The diffraction of x-ray by a crystal gives 1st order ref at 14•12'' if lattice dist is 3.14 A• wht is the wavelength of x-ray
The mass of a photon with a wavelength equal to 1.54 x 10 -8 cm is: (1) 0.8268 x 10 -34 kg (2) 1.287 x10 -33 kg (3)1.4285x 10 -32 k
SILENT FEATURES OF ELECTROCHEMICAL SERIES.
how to determine the strength ofpotassium dichromate withFAS and N-phenyl anthranilic acid as an internal indicator
mention the basic tendency of an atom which makes it to combine with other atoms.
Synethesis of alkanesa
Question 1: (i) With the aid of a diagram, briefly explain the natural environmental system. (ii) Explain the green house effect, and give 2 examples of green house gases
Dessicants(drying agents) can often be regenerated by heating. A dessicant that is commonly regenerated is CaSO 4 .2H 2 O:
ionization energy vary in 3d seris of d-block elements,how and why
2. Oxalic acid is a diprotic acid with the following deprotonation equilibria. A. You have 150 ml of a solution of pure oxalic acid with an unknown concentration.
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