Question

students design an experiment to explore how osmosis works. they prepare two solutions separated by a selectively permeable membrane. the membrane is permeable to water, but is impermeable to salt. which of the following best describes the expected results of their experiment? a salt will move from side a to side b until solute concentrations are equal. b water will move from side b to side a until the concentrations are equal. c salt will move from side b to side a until solute concentrations are equal. d water will move from side a to side b until the concentrations are equal.

Explanation:

Step1: Recall osmosis concept

Osmosis is the movement of water across a semi - permeable membrane from an area of lower solute concentration to an area of higher solute concentration.

Step2: Analyze solute concentrations

Side A has 80% salt and Side B has 20% salt. Water will move from Side B (lower salt/solute concentration) to Side A (higher salt/solute concentration) until equilibrium is reached.

Answer:

B. Water will move from Side B to Side A until the concentrations are equal.