Thursday, June 25, 2009

Analisis asam oksalat dlm fase organik ( Oxalic Acid non-Aqueous) dengan Potensiometer

Peralatan :
Potentiometer = 751 GPD Titrino / Titroprocessor
Electrode = 6.0103.100 pH glass electrode; input 1
6.0726.100 Ag/AgCl double junction reference electrode (LiCl sat. in ethanol)

Pereaksi :
c(TBAOH) = 0.1 mol/L; D0
TBAOH = Tetrabutyl ammonium hydroxide

Sampel :
2 mL c(C2H2O4) = 0.1 mol/L; HOOC-COOH
25 mL ethanol

Rangkuman :

Perhitungan:

Oxalic=EP2*C01/C02/C00;3;mol/l

Oxalic = concentration of oxalic acid in mol/L
C01 = concentration of titrating agent (0.1 mol/L)
C02 = factor for “normality“ (2)
· Compare also titration in aqueous medium, application No. 1-4

Answer

Oxalic = 4.221 x 0.1 / 2 / 2 = 0.106 mol/L

EP1 = 2.048 mL
EP2 = 4.221 mL
C00 = 2.00 mL

Literatur:
Metrohm’s Teachware on CD-ROM

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