Analytical Chemistry |
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Pagina 49
Relative Methods for Expressing Precision . We have thus far calculated
precision in absolute terms . It is often more informative , however , to indicate the
precision relative to the mean ( or the median ) in terms of - percentage or as
parts per ...
Relative Methods for Expressing Precision . We have thus far calculated
precision in absolute terms . It is often more informative , however , to indicate the
precision relative to the mean ( or the median ) in terms of - percentage or as
parts per ...
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 ...
Pagina 81
Calculate the relative error ( in parts per thousand ) for the results of an analysis
of a sample containing about 12 % P if the following sample sizes are taken : ( a )
10 mg , ( b ) 50 mg , ( c ) 100 mg , ( d ) 500 mg , ( e ) 1000 mg . 6 . It was found ...
Calculate the relative error ( in parts per thousand ) for the results of an analysis
of a sample containing about 12 % P if the following sample sizes are taken : ( a )
10 mg , ( b ) 50 mg , ( c ) 100 mg , ( d ) 500 mg , ( e ) 1000 mg . 6 . It was found ...
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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