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A student set up two experiments using Visking tubing to investigate osmosis.
- Experiment 1: A Visking tubing bag containing distilled water was placed in a beaker of 0.6 M sucrose solution.
- Experiment 2: A Visking tubing bag containing 0.6 M sucrose solution was placed in a beaker of distilled water.
After 30 minutes, the bags were removed, dried, and their masses recorded. The percentage change in mass for each bag is shown in the table:
| Experiment | Contents inside bag | Contents outside bag | Percentage change in mass (%) |
|---|---|---|---|
| 1 | Distilled water | 0.6 M sucrose | –10 |
| 2 | 0.6 M sucrose | Distilled water | +8 |
Compare the movement of water in Experiment 1 with the movement of water in Experiment 2. Explain your answer in terms of water potential.