Question

Place the following aqueous solutions of nonvolatile, nonionic compounds in order of decreasing osmotic pressure. I. 0.011 M sucrose II. 0.00095 M glucose III. 0.0060 M glycerin Question 4 options: II > III > I I > II > III II > I > III III > I > II I > III > II

Answer 1

Answer:

I > III > II

Explanation:

The osmotic pressure (π) is a colligative property that can be calculated using the following expression.

π = M × R × T

where,

M is the molarity of the solution

R is the ideal gas constant

T is the absolute temperature

As we can see, there is a direct proportionality between the molarity of the solution and its osmotic pressure. As a consequence, the correct order for osmotic pressures is:

I > III > II