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Estimation of the size of oil molecules

Estimation of the size of oil molecules

VC1.1.3.2

Determining the area A of the oil spot

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Description

One of the important questions in atomic physics is the question of the size of the atom. The study of the size of molecules provides experimentally easier access on a manageable magnitude. Experiment C1.1.3.2 uses simple means to estimate the size of molecules from the size of a patch of oil floating on the surface of water.

Components of equipment sets

1	664179 8	Crystallisation dish, 230 mm diam., 3500 ml
1	665843 4	Burette side stopcock, 10 ml
1	665816 4	Burette filling funnel plastic, 35 mm Ø
2	602010 4	Beaker, Boro 3.3, 150 ml, tall
1	665994 4	Graduated pipette 1 ml
1	665997 4	Graduated pipette 10 ml
2	666003 4	Pipetting ball (Peleus ball)
1	30002 4	Stand base, V-shaped, small
1	30042 4	Stand rod, 47 cm, 12 mm diam.
1	30109 4	Bosshead S
1	666555 4	Universal clamp 0...80 mm
1	6753410 4	Water, pure, 5 l
1	6740000 4	Oleic acid, 50 ml
1	6742200 4	Petroleum ether, 40...70 °C, 250 ml Danger H225 H304 H315 H336 H411 EUH066
1	6706920 4	Lycopodium spores, 25 g
1	666352	Sieve stainless steel, Ø 7 cm
1	6610821	Stopcock grease
1		additionally required: Washing-up liquid, sheet of cross-section paper, DIN A4 or equivalent

Experiment Instructions

PDF (Experiment description)

C1.1.3.2 Estimation of the size of oil molecules

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Estimation of the size of oil molecules

Description

Components of equipment sets

Experiment Instructions

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