Calculate the kinetic energy of the photoelectron
The wavelength corresponding to threshold frequency to tungsten surface is 230nm. Calculate the kinetic energy of the photoelectron ejected from the surface of tungsten metal,if it is irradiated with ultraviolet light of wavelength 180nm?
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Commercial concentrated aqueous ammonia is 28% NH3 by mass and has a density of 0.90 g/ml. What is molarity?
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