Consider pure water separated from an aqueous sugar solution by a semipermeable membrane, which allows water to pass freely but not sugar. After some time has elapsed, the concentration of sugar solution
A) will have increased.
B) will be the same on both sides of the membrane.
C) might have increased or decreased, depending on other factors.
D) will have decreased.
E) will not have changed.

Question

Quizplus · Accepted Answer

The water will move from the pure water side to the sugar solution side to equalize the concentration of solute (sugar) on both sides of the membrane through osmosis. As a result, the sugar solution will become more dilute, and the concentration of the sugar solution will decrease. Therefore, the correct answer is D, the concentration of sugar solution will have decreased.

Consider Pure Water Separated from an Aqueous Sugar Solution by a Semipermeable