Analytical ChemistryHolt, Rinehart and Winston, 1979 - 685 pagine |
Dall'interno del libro
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Pagina 32
... DISSOCIATION OF WEAK ACIDS AND BASES When a weak acid or base is dissolved in water , partial dissociation occurs . Thus for nitrous acid we may write HNO2 + H2O H30 * + NO2 TM ̄ Ka K. = [ H3O * ] [ NO2 ̄ ] [ HNO2 ] a where K. is the ...
... DISSOCIATION OF WEAK ACIDS AND BASES When a weak acid or base is dissolved in water , partial dissociation occurs . Thus for nitrous acid we may write HNO2 + H2O H30 * + NO2 TM ̄ Ka K. = [ H3O * ] [ NO2 ̄ ] [ HNO2 ] a where K. is the ...
Pagina 33
... dissociation constant expressions for ammonia and its conjugate acid , ammonium ion . and [ NH1 * ] [ OH ] [ NH3 ] ... dissociation constants do not list both the acid and base dissociation constants for such pairs because it is so easy to ...
... dissociation constant expressions for ammonia and its conjugate acid , ammonium ion . and [ NH1 * ] [ OH ] [ NH3 ] ... dissociation constants do not list both the acid and base dissociation constants for such pairs because it is so easy to ...
Pagina 212
... dissociation constants of the two acids is somewhat greater than 103. If the ratio is smaller than this , the error becomes prohibitive , particularly in the region of the first equivalence point , and a more rigorous treatment of the ...
... dissociation constants of the two acids is somewhat greater than 103. If the ratio is smaller than this , the error becomes prohibitive , particularly in the region of the first equivalence point , and a more rigorous treatment of the ...
Sommario
Introduction | 1 |
A Review of Simple Equilibrium Constant | 24 |
The Evaluation of Analytical Data | 46 |
Copyright | |
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absorbance absorption activity coefficient addition AgNO3 aliquot analysis analyte anode application approximately atoms base buffer buret calcium Calculate calibration carbonate cathode cations cell cerium(IV chemical color column complex concen copper(II coulometric crucible determined dilute dissociation constant dissolved EDTA electrode potential electrolyte employed end point Equation equilibrium constant equivalence point equivalent weight example excess filter formal concentration formation formula weight glass H₂O H3O+ half-cell half-reaction hydrogen hydronium ion hydroxide indicator iodide iodine ion concentration iron(III liquid liter measurements mercury(II metal method molar NaOH oxalate oxidation particles permanganate pipet potassium precipitate prepared primary standard Procedure quantity radiation reaction reagent reduced sample silver chloride silver ion silver nitrate sodium solid solubility solution containing solvent species standard hydrogen electrode standard solution substance sulfuric acid Table temperature thiosulfate titration curve volume volumetric flask wavelength zinc