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pH paper versus pH electrode - Digital

pH paper versus pH electrode - Digital

LC1.4.1.5C

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Description

In this methodical experiment, the analogue pH measurement with universal indicator paper is compared with the digital measurement with the pH electrode. To do this, the same substances are first examined with pH paper and then with the pH electrode. The students evaluate both methods and recognise the advantages and disadvantages of both measurement methods.

Components of equipment sets

1	6703650	Ammonia solution, diluted, 2 mol/l, 500 ml
1	30945	Universal pencil
1	667027	Tweezers, blunt, 130 mm
1	665997	Graduated pipette 10 ml
1	666003	Pipetting ball (Peleus ball)
1	MA90204	Universal indicator paper pH 1...14, roll
1	667057	Test tube rack metal, 20 mm Ø
5	6640421	Test tube Fiolax 16 mm x 160 mm
1	602022	Beaker Boro 3.3, 100 ml, squat
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	6746960 4	Hydrochloric acid, 0.1 mol/l, 1 l Warning H290
1	6719570 4	Acetic acid, 0.1 mol/l, 1 l
1	6738411 4	Sodium hydroxide solution, 0.1 mol/l, 1 l Warning H290
1	6753410	Water, pure, 5 l

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pH paper versus pH electrode - Digital

Description

Components of equipment sets

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