Determination of the osmotic pressure of a sugar solution

VC4.6.2.1
Determination of the osmotic pressure of a sugar solution
Determination of the osmotic pressure of a sugar solution

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Description

Experiment C4.6.2.1 uses the osmometer to demonstrate the principle of osmosis. This process plays a key role in regulating the volume and water of cells. The two chambers contain different concentrations of a solution and are separated by a semi-permeable membrane. The solvent flows osmotically into the solution of higher concentration. This raises the liquid level of that solution in the open system. The higher the concentration of the solution, the greater the water ingress. It slows to a stop when the hydrostatic pressure of the water column in the capillary tube is exactly equal to the osmotic pressure.

Components of equipment sets

1 662403  4  Osmosis apparatus, large LD
1 667501  8  Scale for large osmosis apparatus LD
1 664103  4  Beaker, DURAN, 250 ml, squat LD
1 665754  4  Measuring cylinder 100 ml, with plastic base LD
2 665794  4  Volumetric flask, Boro 3.3, 250 ml LD
1 6677977  4  Electronic Balance 440-3N, 200 g : 0.01 g LD
1 665953  4  Dropping pipette, 7 x 150 mm, 10 pcs. LD
1 665954  8  Rubber bulbs, 10 pcs LD
1 6746060  4  D(+)-Saccharose, 250 g LD

Experiment Instructions

PDF (Experiment description) PDF (Experiment description) C4.6.2.1 Determination of the osmotic pressure of a sugar solution
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