Place the following aqueous solutions of nonvolatile,nonionic compounds in order of decreasing osmotic pressure. I.0.011 M ethanol II.0.00095 M fructose III.0.0060 M glycerin
A) I III II
B) I II III
C) II III I
D) III I II
E) II I III

Question

Place the following aqueous solutions of nonvolatile,nonionic compounds in order of decreasing osmotic pressure. I.0.011 M ethanol II.0.00095 M fructose III.0.0060 M glycerin
A) I > III > II
B) I > II > III
C) II > III > I
D) III > I > II
E) II > I > III

Quizplus · Accepted Answer

Osmotic pressure is directly proportional to the molarity of the solution. Therefore, the solution with the highest molarity will have the highest osmotic pressure, and the one with the lowest molarity will have the lowest osmotic pressure. The order from highest to lowest molarity (and thus osmotic pressure) is: 0.011 M ethanol (I) > 0.0060 M glycerin (III) > 0.00095 M fructose (II).

Place the Following Aqueous Solutions of Nonvolatile,nonionic Compounds in Order