CHEM101 Study Guide - Final Guide: Hygroscopy, Efflorescence, Flame Test

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CHEM101 Full Course Notes
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CHEM101 Full Course Notes
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Wavelength and energy of photons: spectrums are unique for each element. Light emission (p. 273: flame test, fireworks, fluorescent lights (usually hg discharge tubes) E = (energy of final level) (energy of initial level) = en - em. Know how to operate a spectrometer (fig b7. 3 silberberg) The plot of a against wavelength is called a spectrum. Amphoteric (reacts with either an acid or base) (p. 798) Difference between chemical and physical changes (p. 4-7 silberberg) Filtrate = the liquid that passes through the filter. Weak/strong acids and bases (p. 729 silberberg) Naming hydrates (p. 63 silberberg: molar mass of cuso4 . 5h2o equals the mass of cuso4, plus 5 times the mass of h2o. Some hydrated compounds spontaneously lose or gain water from the atmosphere: spontaneously lose = efflorescent. Occurs because the vapor pressure of water exerted is greater than that of the vapor pressure of water in surrounding atmosphere: spontaneously gain = hygroscopic.