A semipermeable membrane separates two aqueous solutions at 37 °C. For each of t
ID: 518265 • Letter: A
Question
A semipermeable membrane separates two aqueous solutions at 37 °C. For each of the following cases, determine the solution into which a net flow of water (if any) will occur.
Net Flow toward A:
Net Flow toward B:
No net flow:
1. Solution A - 0.20 M KCl solution/ Solution B pure water
2. Solution A - 0.10 M KCl solution/ Solution B - 0.10 M CaCl2
3. Solution A - 5.0% (w/v) glucose solution/ Solution B - 10.0% (w/v) glucose solution
4. Solution A - 1.0 mM KCl solution/ Solution B - 1.0 mM NaCl solution
Explanation / Answer
1)
Net Flow toward A:
2)
Net Flow toward B:
3)
Net Flow toward B:
4)
No net flow:
Explanation :
the solvent always moves from to pure water to solution.
or solvent moves from low concentration to high concentration.
if two solutions are same concentration, there is no net flow
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