The Solutions in the Two Arms of a U-Tube Are

question 1

Multiple Choice

The solutions in the two arms of a U-tube are separated by a membrane that is permeable to water and glucose but not to sucrose. Side A is half-filled with a solution of 2 M sucrose and 1 M glucose. Side B is half-filled with 1 M sucrose and 2 M glucose. Initially, the liquid levels on both sides are equal. Which of the following is the most likely result when the system has reached equilibrium?

• A) The concentration of sucrose on side A will be greater than the concentration of sucrose on side B.
• B) The water level will be higher in side A than in side B.
• C) The water levels will be unchanged.
• D) The water level will be higher in side B than in side A.

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