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Multi-step protolysis of phosphoric acid - Digital

Multi-step protolysis of phosphoric acid - Digital

LC1.4.4.1C

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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 pK_A values graphically.

Components of equipment sets

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

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Multi-step protolysis of phosphoric acid - Digital

Description

Components of equipment sets

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