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

1 674 9040  4 
Silicone high vacuum grease, 100 g LD
1 665 997  4 
Graduated pipette 10 ml LD
1 666 003  4 
Pipetting ball (Peleus ball) LD
1 666 555  4 
Universal clamp 0...80 mm LD
1 301 09  4 
Bosshead S LD
1 301 21  8 
Stand base MF LD
1 301 23  4 
Stand feet, pair LD
2 301 271  4 
Stand rod 40 cm, 10 mm Ø LD
1 665 212  4 
Glass stirring rod 200 x 8 mm Ø LD
1 664 131  4 
Beaker Boro 3.3, 400 ml, squat LD
1 602 022  4 
Beaker Boro 3.3, 100 ml, squat LD
1 665 843  4 
Burette side stopcock, 10 ml LD
1 665 816  4 
Burette filling funnel plastic, 35 mm Ø LD
1 610 010  8 
Laboratory safety goggles LD
1 524 005W2
Mobile-CASSY 2 WiFi LD
1 529 673  8 
pH combination electrode, BNC LD
1 524 452  8 
pH Adapter M LD
1 674 4640  4 
Buffer solution pH 4.00, 250 ml LD
1 674 4670  4 
Buffer solution pH 7.00, 250 ml LD
1 673 8411  4 
Sodium hydroxide solution, 0.1 mol/l, 1 l LD
GHS05 Warning H290
1 674 3440  4 
Phosphoric acid, 10 %, 100 ml LD
GHS07 Warning H315 H319
1 675 3410  4 
Water, pure, 5 l LD
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