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Students are introduced to the principles of osmosis. Activities are performed utilising dialysis tubing and various concentrations of salt. Dyes of different molecular weights are also used to visually demonstrate the size selectivity of membranes.
For 10 lab groups. Complete in 45 minutes.
Kit includes: instructions, high and low molecular weight dyes, dialysis tubing, transfer pipettes.
You need: 300-400 ml beakers, table salt, apple and beet juice, distilled water.