Analytical Chemistry: An IntroductionSaunders College Pub., 1994 - 675 pagine |
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Pagina 175
... BUFFER SOLUTIONS Whenever a weak acid is titrated with a strong base or a weak base with a strong acid , a buffer solution consisting of a conjugate acid / base pair is formed . Thus , before we can show how titration curves for weak ...
... BUFFER SOLUTIONS Whenever a weak acid is titrated with a strong base or a weak base with a strong acid , a buffer solution consisting of a conjugate acid / base pair is formed . Thus , before we can show how titration curves for weak ...
Pagina 179
... Buffer Solutions In this section we illustrate the resistance of buffers to changes of pH brought about by dilution or addition of strong acids or bases . The Effect of Dilution The pH of a buffer solution remains essentially ...
... Buffer Solutions In this section we illustrate the resistance of buffers to changes of pH brought about by dilution or addition of strong acids or bases . The Effect of Dilution The pH of a buffer solution remains essentially ...
Pagina 180
... Buffer capacity as a function of the ratio CNA / CHA pH = -log 9.50 × 10-10 = 9.02 △ pH = 9.02 - 9.07 = −0.05 Buffer capacity is the number of moles of strong acid or strong base that 1 L of the buffer can absorb per unit change in pH ...
... Buffer capacity as a function of the ratio CNA / CHA pH = -log 9.50 × 10-10 = 9.02 △ pH = 9.02 - 9.07 = −0.05 Buffer capacity is the number of moles of strong acid or strong base that 1 L of the buffer can absorb per unit change in pH ...
Parole e frasi comuni
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