Analytical ChemistryHolt, Rinehart and Winston, 1979 - 685 pagine |
Dall'interno del libro
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Pagina 82
... described in Problem 15 to ± 1.0 μg Cu / ml ? 18. How many replicate measurements would be needed to decrease the 80 % and 95 % confidence limits for the analysis described in Problem 16 to ± 0.13 μg Pb / ml ? * 19. A chemist obtained ...
... described in Problem 15 to ± 1.0 μg Cu / ml ? 18. How many replicate measurements would be needed to decrease the 80 % and 95 % confidence limits for the analysis described in Problem 16 to ± 0.13 μg Pb / ml ? * 19. A chemist obtained ...
Pagina 209
... described in terms of material balance : FNaHA = [ HA ] + [ H2A ] + [ A2 ̄ ] It can also be described in terms of charge balance : [ Na * ] + [ H3O * ] = [ HA ̄ ] + 2 [ A2 ̄ ] + [ OH ̄ ] ( 9-13 ) Because the sodium ion concentration is ...
... described in terms of material balance : FNaHA = [ HA ] + [ H2A ] + [ A2 ̄ ] It can also be described in terms of charge balance : [ Na * ] + [ H3O * ] = [ HA ̄ ] + 2 [ A2 ̄ ] + [ OH ̄ ] ( 9-13 ) Because the sodium ion concentration is ...
Pagina 476
... described in ( a ) ? ( c ) What will be the concentration of the complex in a solution that has the same absorbance described in ( a ) when measured at 470 nm in a 1.00 - cm cell ? * 7 . At 580 nm , the wavelength of its maximum ...
... described in ( a ) ? ( c ) What will be the concentration of the complex in a solution that has the same absorbance described in ( a ) when measured at 470 nm in a 1.00 - cm cell ? * 7 . At 580 nm , the wavelength of its maximum ...
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