Analytical Chemistry |
Dall'interno del libro
Risultati 1-3 di 39
Pagina 235
The long - necked container , which is used for both oxidation and distillation , is
called a Kjeldahl flask . After the oxidation is judged complete , the contents of the
flask are cooled , diluted with water , and then made basic to liberate the ...
The long - necked container , which is used for both oxidation and distillation , is
called a Kjeldahl flask . After the oxidation is judged complete , the contents of the
flask are cooled , diluted with water , and then made basic to liberate the ...
Pagina 567
Weighing bottles or small , well - stoppered conical flasks are convenient
receivers for small volumes . PROCEDURE Calibration of a ... During this interval
weigh ( to the nearest milligram ) a 125 - ml conical flask fitted with a rubber
stopper .
Weighing bottles or small , well - stoppered conical flasks are convenient
receivers for small volumes . PROCEDURE Calibration of a ... During this interval
weigh ( to the nearest milligram ) a 125 - ml conical flask fitted with a rubber
stopper .
Pagina 589
With the Kjeldahl flask tilted , slowly pour the caustic down the side of the
container to minimize mixing with the solution in the flask ( Note 1 ) . Add several
pieces of granulated zinc ( Note 2 ) and a small piece of litmus paper .
Immediately ...
With the Kjeldahl flask tilted , slowly pour the caustic down the side of the
container to minimize mixing with the solution in the flask ( Note 1 ) . Add several
pieces of granulated zinc ( Note 2 ) and a small piece of litmus paper .
Immediately ...
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Sommario
Preface | 1 |
A Review of Some Elementary Concepts | 8 |
A Review of Simple Equilibrium Constant | 24 |
Copyright | |
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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