Penentuan Na+ / Cl- dalam lart Isotonik dg alat titrino/titroprocessor

Peralatan
Potentiometer = 751 GPD Titrino / Titroprocessor
Electrodes = 6.0430.100 Ag Titrode; input 1

Pereaksi
c(AgNO3) = 0.1 mol/L; D0

Sample
5 mL sample solution (153 mmol/L Na+ / Cl-)
2 mL c(HNO3) = 2 mol/L
30 mL dist. water

Remarks
· Perhitungan:

Na+Cl-=EP1*C01*C02/C00;2;mmol/l

Na+Cl- = concentration of Na+ / Cl- in isotonic solution in mmol/L
C01 = concentration of titrating agent (0.1 mol/L)
C02 = factor for conversion mol/L Þ mmol/L (1000)

. Jawaban

Na+Cl- = 7.652 x 0.1 x 1000 / 5.00 = 153.04 mmol/L

EP1 = 7.652 ml
C00 = 5 mL

Literature
· Metrohm Application Bulletin No. 130: Chloride titrations with
potentiometric end-point indication.