Assume that two liquids are separated by a semipermeable membrane, with pure solvent on the right side and a solution of a solute on the left side. Make a drawing that shows the situation after equilibrium is reached.
Interpretation:
The situation after equilibrium is reached when two liquids are separated by a semipermeable membrane has to be drawn.
Concept introduction:
Colligative properties such as vapor pressure, freezing point, and boiling point are affected by the presence of solute particles in a solution.
Osmosis is the passage of substances in true solution through a semipermeable membrane.
Particles such as starches and protein molecules are too large to pass the membrane.
The restriction of passage of large particles causes the smaller particles to pass more rapidly in the direction of higher concentrations, producing an osmotic pressure in confined liquids.
Explanation of Solution
Osmosis occurs when solution of different concentration are separated by a semipermeable membrane that allows solvent molecules to pass but blocks the passage of solute ions and molecules. Solvent flows from the more dilute side to the more concentrated side until sufficient osmotic pressure builds up and stops the flows. An effect similar to osmosis occurs when membranes of large pore size are used.
The situation after equilibrium is reached when two liquids are separated by a semipermeable membrane is drawn as
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Chapter 9 Solutions
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