Experiments

What are steps in demonstrating osmosis?
- Soften lengths of visking tubing
- Knot one end of each
- Half full with sucrose solution
- Half fill with water (control)
- Knot other end and pat dry
- Tie ends together
- Turgidity and mass recorded
- Hang from glass rod
- Dry reweigh and observe turgidity
- Higher concentrated swelled and control stayed the same.
What are the steps (in a few words)?
- Visking tubing
- Knot
- Sucrose solution
- Water -control
- Knot
- Tie two ends
- Turgidity and mass
- Glass rod
- Re move and reweigh
- Sucrose solution one swelled
How are the visking tubing softened?

Soaking in water
Why are the visking tubing used?

Semi permeable membrane allows some molecules to pass.
What are the two pieces of tubing filled with?
- Sucrose solution
- Water
- (half fill each)
What is the control?

Water in one tube
What is fine before the two pieces of tubing are placed into the beaker of water?
- Two ends tied together
- Observe turgidity
- Record the mass
What are the tubes hung from ?

Glass rod
What is the expected result of the experiment?
- The visking tubing with sucrose solution has swelled as it was immersed in a less concentrated solution.
- Control stayed the same
What are the pieces of equipment needed?
- Visking tubing
- Water
- Sucrose solution
- Something to weigh their mass
- Glass rod
- Beaker
Which is the hyper tonic solution?

Tubing with sucrose solution

Author

jacquelineglynn

363411

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Experiments

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Questions

Updated

2023-06-11T05:59:05Z

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