Potentiometric titration of iron(II) ions

C3.5.1.3
Potentiometric titration of iron(II) ions Titration curve of iron(II) ions
Potentiometric titration of iron(II) ions
Potentiometric titration of iron(II) ions Titration curve of iron(II) ions
Potentiometric titration of iron(II) ions
Potentiometric titration of iron(II) ions

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Description

In experiment C3.5.1.3, a potentiometric titration is performed in order to measure the concentration of iron(II) ions. In the process, the iron(II) ions are oxidised with potassium permanganate.

The change in the potential of the solution during the titration corresponds here to the change in pH in an acid-base titration.

Components of equipment sets

1 524 005W2 Mobile-CASSY 2 WiFi LD
1 524 220  4  CASSY Lab 2 LD
1 524 0672  4  pH adapter S LD
1 667 416  8  Single-rod redox probe BNC LD
1 667 7991 Analytical balance, 220 g : 0.0001 g LD
1 607 105  8  Magnetic stirrer mini LD
1 664 103  4  Beaker, DURAN, 250 ml, squat LD
1 300 42  4  Stand rod, 47 cm, 12 mm diam. LD
1 300 02  4  Stand base, V-shaped, small LD
2 665 792  4  Volumetric flask, Boro 3.3, 50 ml LD
1 665 997  4  Graduated pipette 10 ml LD
1 666 003  4  Pipetting ball (Peleus ball) LD
1 665 845  4  Burette side stopcock, 25 ml LD
1 665 816  4  Burette filling funnel plastic, 35 mm Ø LD
1 666 559  8  Burette clamp for 1 burette, roller clamp LD
1 666 543  4  Double, crossed boss head, 0...16 mm LD
1 666 555  4  Universal clamp 0...80 mm LD
1 671 9100  4  Iron(II) sulfate-7-hydrate, 100 g LD
GHS07 Warning H302 H315 H319
1 672 7000  4  Potassium permanganate, 100 g LD
GHS03GHS07GHS09 Danger H272 H302 H410
1 674 7920  4  Sulfuric acid, diluted, approx. 2 N (= 10 %), 500 ml LD
GHS05 Warning H290 H315 H319
1 672 1100  4  D(+)-Glucose, 100 g LD
1 additionally required: PC with Windows 7 or higher with WIFI or USB connection

Experiment Instructions

PDF (Experiment description) PDF (Experiment description) C3.5.1.3 Potentiometric titration of iron(II) ions (de)
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