Analytical Chemistry: An IntroductionSaunders College Pub., 1994 - 675 pagine |
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Pagina 18
... Percent Concentration We frequently express concentrations in terms of percent ( parts per hundred ) . Unfortunately , this practice can be a source of ambiguity because percent compo- sition of a solution can be expressed in several ...
... Percent Concentration We frequently express concentrations in terms of percent ( parts per hundred ) . Unfortunately , this practice can be a source of ambiguity because percent compo- sition of a solution can be expressed in several ...
Pagina 110
... percent Fe ( 55.847 g / mol ) , and ( b ) the percent Fe3O4 ( 231.54 g / mol ) in the sample . For both parts of this problem we will need to calculate the number of moles of Fe2O3 . Thus , amount Fe2O3 = 0.5394 g FeO3 × 1 mol Fe O ...
... percent Fe ( 55.847 g / mol ) , and ( b ) the percent Fe3O4 ( 231.54 g / mol ) in the sample . For both parts of this problem we will need to calculate the number of moles of Fe2O3 . Thus , amount Fe2O3 = 0.5394 g FeO3 × 1 mol Fe O ...
Pagina 235
... percent purity of the KBH , ( 53.941 g / mol ) . 13-18 . What volume of 0.04642 M KSCN would be needed if the analysis in 13-17 were completed by filtering off the metallic Ag , dissolving it in acid , diluting to 250.0 mL , and ...
... percent purity of the KBH , ( 53.941 g / mol ) . 13-18 . What volume of 0.04642 M KSCN would be needed if the analysis in 13-17 were completed by filtering off the metallic Ag , dissolving it in acid , diluting to 250.0 mL , and ...
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