Analytical Chemistry |
Dall'interno del libro
Risultati 1-3 di 40
Pagina 48
Absolute Methods for Expressing Precision . The deviation from the mean ( x ; - )
is a common method for describing precision and is simply the numerical
difference , without regard to sign , between an experimental value and the mean
for the ...
Absolute Methods for Expressing Precision . The deviation from the mean ( x ; - )
is a common method for describing precision and is simply the numerical
difference , without regard to sign , between an experimental value and the mean
for the ...
Pagina 63
Error The Standard Deviation . Equation 4 - 2 indicates that a unique distribution
curve exists for each value of the standard deviation . Regardless of the size of o ,
however , it can be shown that 68 . 3 % of the area beneath the curve lies ...
Error The Standard Deviation . Equation 4 - 2 indicates that a unique distribution
curve exists for each value of the standard deviation . Regardless of the size of o ,
however , it can be shown that 68 . 3 % of the area beneath the curve lies ...
Pagina 64
Thus with a small set of data , not only is the mean å likely to differ from u but ,
equally important , the estimate of the standard deviation also may be misleading
. That is , we have two uncertainties to cope with , the one residing in the mean ...
Thus with a small set of data , not only is the mean å likely to differ from u but ,
equally important , the estimate of the standard deviation also may be misleading
. That is , we have two uncertainties to cope with , the one residing in the mean ...
Cosa dicono le persone - Scrivi una recensione
Nessuna recensione trovata nei soliti posti.
Sommario
Preface | 1 |
A Review of Some Elementary Concepts | 8 |
A Review of Simple Equilibrium Constant | 24 |
Copyright | |
59 sezioni non visualizzate
Altre edizioni - Visualizza tutto
Parole e frasi comuni
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