Multi-step protolysis of phosphoric acid - Digital

LC1.4.4.1C
Multi-step protolysis of phosphoric acid - Digital
Multi-step protolysis of phosphoric acid - Digital

Description

In this experiment, phosphoric acid is titrated with sodium hydroxide solution. In the process the students analyse the first two protolysis stages of phosphoric acid using the titration curve and determine the respective pKA values graphically.

Components of equipment sets

1 6749040  4 
Silicone high vacuum grease, 75 g LD
1 665997  4 
Graduated pipette 10 ml LD
1 666003  4 
Pipetting ball (Peleus ball) LD
1 666555  4 
Universal clamp 0...80 mm LD
1 30109  4 
Bosshead S LD
1 30121  8 
Stand base MF LD
1 30123  4 
Stand feet, pair LD
2 301271  4 
Stand rod 40 cm, 10 mm Ø LD
1 665212  4 
Glass stirring rod 200 x 8 mm Ø LD
1 664131  4 
Beaker Boro 3.3, 400 ml, squat LD
1 602022  4 
Beaker Boro 3.3, 100 ml, squat LD
1 665843  4 
Burette clear glass, 10 ml, side stopcock LD
1 665816  4 
Burette filling funnel plastic, 35 mm Ø LD
1 610010  8 
Laboratory safety goggles LD
1 524005W2
Mobile-CASSY 2 WiFi LD
1 529673  8 
pH combination electrode, BNC LD
1 524452  8 
pH Adapter M LD
1 6744640  4 
Buffer solution pH 4.00, 250 ml LD
1 6744670  4 
Buffer solution pH 7.00, 250 ml LD
1 6738411  4 
Sodium hydroxide solution, 0.1 mol/l, 1 l LD
GHS05 Warning H290
1 6743440  4 
Phosphoric acid, 10 %, 100 ml LD
GHS07 Warning H315 H319
1 6753410  4 
Water, pure, 5 l LD
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