Analytical Chemistry |
Dall'interno del libro
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Pagina 48
09 Ideally the mean and median should be numerically identical ; more often
than not , however , this condition is not realized , particularly when the number of
measurements in the set is small . PRECISION retko UCINA The term precision is
...
09 Ideally the mean and median should be numerically identical ; more often
than not , however , this condition is not realized , particularly when the number of
measurements in the set is small . PRECISION retko UCINA The term precision is
...
Pagina 65
The need to establish the mean i from the data removes one degree of freedom .
That is , if their signs are retained , the individual deviations from å must total zero
; once ( N − 1 ) deviations have been established , the final one is necessarily ...
The need to establish the mean i from the data removes one degree of freedom .
That is , if their signs are retained , the individual deviations from å must total zero
; once ( N − 1 ) deviations have been established , the final one is necessarily ...
Pagina 80
of Analytical Data For this set of data calculate ( a ) the mean , ( b ) the median , (
c ) the precision in terms of the spread , ( d ) the precision in terms of the average
absolute and relative deviation from the mean , ( e ) the absolute and relative ...
of Analytical Data For this set of data calculate ( a ) the mean , ( b ) the median , (
c ) the precision in terms of the spread , ( d ) the precision in terms of the average
absolute and relative deviation from the mean , ( e ) the absolute and relative ...
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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