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Principle
Osmosis describes the phenomenon that solvent molecules move through a partially permeable membrane into a region of higher solute concentration. Thus, the concentration of solute is equalized on both sides. The experimental set-up consists of seven chambers that are filled with solutions of sugar with different concentrations. The liquid column in the capillaries is determined and the dependence of the osmotic pressure on the concentration can easily be shown.
Benefits
- Quantitative determination of the osmosis processes
- Multiple measurement points permit detailed analysis
- Scalable experiment: number of measurement points can be varied
Tasks
- Investigate the phenomenom of osmosis in a simple model experiment.
- Determine the dependence of osmotic pressure on concentration of dissolved molecules.
Learning objectives
- Osmosis
- Osmotic pressure
- Concentration
Device name
Item No.
Quantity
Name
Filename
Filesize
Filetyp
(en) Experiment guide
p1135700e .pdf
Filesize 0.41 Mb
pdf
(de) Versuchsbeschreibung
p1135700_de .pdf
Filesize 1.18 Mb
pdf
(ru) Versuchsbeschreibung
p1135700_ru .pdf
Filesize 1.28 Mb
pdf