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The covalency of nitrogen in HNO3 is:
(1) 0
(2) 3
(3) 4
(4) 5
Ans: 5
Types of burner system in AAS
Acetylene tetrachloride (Westron), CHCl 2 ·CHCl 2 It is as well called as sym. tetrachloroethane. It is made by the action of chlorine on acetylene in existence of a catalyst
p block element
Explain Arhenious theory with utility and limitation?
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A 15 m 3 tank contains steam at 10 bar and 300 o C. The system is then cooled until the temperature reaches 150 o C . Some of the steam condenses. a) How much heat was transf
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Calculate how much heat energy is required to raise the temperature of a cube of copper of side 2cm. from 300 to 320k. given: density=8933kg/m cube , atomic weight=63.55, cp=24j/k/
A hypothetical molecule, X–Y, has a dipole moment of 1.48 D and a bond length of 161 pm. Calculate the percent ionic character of this molecule
Caculate the amount of heat energy needed to raise the temp. Of the water in a 40 gal (151-kg) home water heater from 19.o celcius (66.2 f) to 60.00 C (140.f
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