Analytical Chemistry: An IntroductionSaunders College Pub., 1994 - 675 pagine |
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Risultati 1-3 di 78
Pagina 413
... MOLECULAR ABSORPTION According to quantum theory , every molecular species has a unique set of energy states , the lowest of which is the ground state . At room temperature , most molecules are present in their ground state . When a ...
... MOLECULAR ABSORPTION According to quantum theory , every molecular species has a unique set of energy states , the lowest of which is the ground state . At room temperature , most molecules are present in their ground state . When a ...
Pagina 444
... molecules and mole- cules of the solvent . During these collisions , the excess vibrational energy is transferred to ... molecular absorption bands , molecular fluorescence 444 Chapter 23 Molecular Fluorescence Spectroscopy.
... molecules and mole- cules of the solvent . During these collisions , the excess vibrational energy is transferred to ... molecular absorption bands , molecular fluorescence 444 Chapter 23 Molecular Fluorescence Spectroscopy.
Pagina 528
... molecules can diffuse . While in the pores , molecules are effectively trapped and removed from the flow of the mobile phase . The average residence time of analyte molecules depends on their effective size . Molecules that are ...
... molecules can diffuse . While in the pores , molecules are effectively trapped and removed from the flow of the mobile phase . The average residence time of analyte molecules depends on their effective size . Molecules that are ...
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absorbance absorption acid activity added addition amount analysis analyte applications approximately atomic base becomes buffer Calculate carbonate cations cause cell charge chemical chloride chromatography color column complex compounds concentration consider constant containing curve described determination difference dilute dissociation dissolved EDTA effect electrode electrode potential electrolyte end point Equation equilibrium equivalence error example excess expression Figure filter formation give given glass H₂O H3O+ hydrogen hydroxide increase indicator involves less liquid mass mean measurements metal method mmol molar NaOH needed Note obtained occurs organic oxidation particles positive potassium potential precipitate prepared quantity radiation range reaction reagent reduced reference relative salt sample shown shows silver sodium solid solubility solution species standard standard deviation strong surface Table temperature tion titration types volume weighed write