I keep getting “Osmosis” questions wrong in Solutions & Colligative Properties. What's the trap?
thinking the solute moves rather than the solvent.
The usual trap: thinking the solute moves rather than the solvent. How to avoid it: water moves toward the saltier side to dilute it. Go back to the definition — the net movement of solvent through a semipermeable membrane from a dilute (low-solute) side to a concentrated (high-solute) side.
Key point
Osmosis
Common mistake
thinking the solute moves rather than the solvent.
Memory tip
water moves toward the saltier side to dilute it.
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