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Technical data


Osmosis - dependence of the osmotic pressure on the concentration

Article no: P1135700

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

  1. Investigate the phenomenom of osmosis in a simple model experiment.
  2. Determine the dependence of osmotic pressure on concentration of dissolved molecules.

Learning objectives

  • Osmosis
  • Osmotic pressure
  • Concentration

Scope of delivery

Filtration stand for 2 funnels 33401-88 1
Stand rods, stainless steel, various sizes 02037-00 2
Stand rods, stainless steel, various sizes 02033-00 1
Right angle boss-head clamp 37697-00 2
Osmosis and electrochemistry chamber 35821-00 1
Supplement chamber for osmosis / electro chemistry 35821-10 5
Capillary tube,i.d. 1.5mm,l 450mm 05939-00 7
Glass tube holder with tape measure clamp 05961-00 7
Scale 350 mm 64840-00 7
Beakers, Boro, high form, various sizes 46027-00 1
Spoon, special steel 33398-00 1
Wash bottle, plastic, 500 ml 33931-00 1
Glass rod,boro 3.3,l=300mm, d=7mm 40485-05 3
Funnels (glass), Boro, various sizes 34457-00 1
Scissors, straight, 180 mm 64798-00 1
Cellophane, 300x200 mm, 32987-00 1
Precision Balance, Sartorius, 620 g : 1 mg 49311-99 1
Copper-II sulphate,cryst. 250 g 30126-25 1
Water, distilled 5 l 31246-81 1
D(+)-glucose 1-hydr. 250 g 30237-25 1

PHYWE Systeme GmbH & Co. KG
Robert-Bosch-Breite 10 – 37079 Göttingen – Germany
www.phywe.com