Analytical ChemistryHolt, Rinehart and Winston, 1979 - 685 pagine |
Dall'interno del libro
Risultati 1-3 di 30
Pagina 63
... standard deviation . Regardless of the size of σ , however , it can be shown that 68.3 % of the area beneath the curve lies within one standard deviation ( ± 1σ ) of the mean , μ . Thus 68.3 % of the values lie within these boundaries ...
... standard deviation . Regardless of the size of σ , however , it can be shown that 68.3 % of the area beneath the curve lies within one standard deviation ( ± 1σ ) of the mean , μ . Thus 68.3 % of the values lie within these boundaries ...
Pagina 64
... standard deviation also may be misleading . That is , we have two uncertainties to cope with , the one residing in the mean and the other in the standard deviation . A decrease in the number of replicates in a set of data has two ...
... standard deviation also may be misleading . That is , we have two uncertainties to cope with , the one residing in the mean and the other in the standard deviation . A decrease in the number of replicates in a set of data has two ...
Pagina 76
... standard deviation of the result . Thus Sc = 0.0104 × 0.029 = 0.0003 and we can indicate the uncertainty of the answer as 0.0104 ( +0.0003 ) . The following example demonstrates the calculation of the stan- dard deviation of the result ...
... standard deviation of the result . Thus Sc = 0.0104 × 0.029 = 0.0003 and we can indicate the uncertainty of the answer as 0.0104 ( +0.0003 ) . The following example demonstrates the calculation of the stan- dard deviation of the result ...
Sommario
Introduction | 1 |
A Review of Simple Equilibrium Constant | 24 |
The Evaluation of Analytical Data | 46 |
Copyright | |
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absorbance absorption activity coefficient addition AgNO3 aliquot analysis analyte anode application approximately atoms base buffer buret calcium Calculate calibration carbonate cathode cations cell cerium(IV chemical color column complex concen copper(II coulometric crucible determined dilute dissociation constant dissolved EDTA electrode potential electrolyte employed end point Equation equilibrium constant equivalence point equivalent weight example excess filter formal concentration formation formula weight glass H₂O H3O+ half-cell half-reaction hydrogen hydronium ion hydroxide indicator iodide iodine ion concentration iron(III liquid liter measurements mercury(II metal method molar NaOH oxalate oxidation particles permanganate pipet potassium precipitate prepared primary standard Procedure quantity radiation reaction reagent reduced sample silver chloride silver ion silver nitrate sodium solid solubility solution containing solvent species standard hydrogen electrode standard solution substance sulfuric acid Table temperature thiosulfate titration curve volume volumetric flask wavelength zinc