3 A model: the U-tube experiment (described)
Point 12 of 22 — Module 4 — Aqueous Solutions and Their Properties (Colligative Properties and Osmosis)Question bank: 0 questions (0 with pictures)
12 5.3 A model: the U-tube experiment (described)
- A U-shaped tube has a semi-permeable membrane across the middle.
- On the left, pure water; on the right, a sugar solution, both at the same level at the start.
- After some time, the level on the solution side rises and the pure-water side falls: water has moved by osmosis into the concentrated side.
- The extra height of liquid produces a pressure that finally balances the osmotic pressure.
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