A semi-permeable membrane separates a solution that is 0.012 M in glucose from one that is 0.250 M i β Solutions and Colligative Properties Chemistry Question
Question
A semi-permeable membrane separates a solution that is 0.012 M in glucose from one that is 0.250 M in glucose. On which of these solutions must pressure be applied to prevent a net flow of water through the membrane?
Answer: B
π‘ Solution & Explanation
Osmosis causes water to flow from the less concentrated solution (0.012 M) to the more concentrated solution (0.250 M). To stop this net flow of water, an external pressure (equal to the osmotic pressure difference) must be applied to the more concentrated solution, which is the 0.250 M glucose solution.
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