Analytical Chemistry |
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Pagina 140
50 % ( w / v ) dimethylglyoxime ( C « H2N2O2 ) solution should be used to
precipitate the Ni2 + in a solution containing 80 . 0 mg of NiCl2 , assuming that a
4 . 0 % excess of the reagent is needed to assure quantitative removal of the
cation ?
50 % ( w / v ) dimethylglyoxime ( C « H2N2O2 ) solution should be used to
precipitate the Ni2 + in a solution containing 80 . 0 mg of NiCl2 , assuming that a
4 . 0 % excess of the reagent is needed to assure quantitative removal of the
cation ?
Pagina 245
0 ml of the base ; precipitation of all of the carbonate resulted , and 8 . 42 ml of
the HCl were required to titrate the excess base . Calculate the composition of the
mixture . * 29 . Calculate the volume of 0 . 0545 - N HCI needed to titrate ( a ) 25 .
0 ml of the base ; precipitation of all of the carbonate resulted , and 8 . 42 ml of
the HCl were required to titrate the excess base . Calculate the composition of the
mixture . * 29 . Calculate the volume of 0 . 0545 - N HCI needed to titrate ( a ) 25 .
Pagina 267
65 ml of the EDTA solution were needed to react with the nickel . Calculate the
respective percentages of nickel , chromium , and iron in the alloy . A 0 . 337 - g
sample of brass was dissolved in nitric acid . The sparingly soluble metastannic ...
65 ml of the EDTA solution were needed to react with the nickel . Calculate the
respective percentages of nickel , chromium , and iron in the alloy . A 0 . 337 - g
sample of brass was dissolved in nitric acid . The sparingly soluble metastannic ...
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Sommario
Preface | 1 |
A Review of Some Elementary Concepts | 8 |
A Review of Simple Equilibrium Constant | 24 |
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absorbance absorption acid activity added addition amount analysis analyte application approximately balance base becomes Calculate carbonate cause cell Chapter chemical chloride chromatography color column common complex concentration considered constant containing curve described determined deviation difference dilute direct Discussion dissociation dissolved drop effect electrode employed end point Equation equilibrium equivalence point error example excess exist expression Figure filter flask formation give given glass heating hydrogen hydroxide important increase indicator involves iodine less limited liquid liter mean measurements metal method NaOH needed Neutralization Note obtained occurs organic oxidation phase potassium potential precipitate prepared presence problem Procedure quantity radiation reaction reagent reduced region relative sample separation shown silver sodium solid solubility solution species standard substance surface Table temperature titration volume volumetric weight