Problem: Use the van't Hoff factors in the table below to calculate each colligative property:Van't Hoff Factors at 0.05 m Concentration in Aqueous SolutionSolute/Expected/MeasuredNonelectrolyte11NaCl21.9MgSO421.3MgCl232.7K2SO432.6FeCl343.4Calculate the osmotic pressure of a 9.3×10−2 M potassium sulfate solution at 306K.

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We are being asked to calculate the osmotic pressure of a 9.3×10−2 M potassium sulfate solution at 306K using the van’t Hoff factor in the table


Osmotic pressure (Π) is given by the equation:

 = iMRT


where

i = van't Hoff factor

M = molarity

R = gas constant

T = temperature


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Problem Details
Use the van't Hoff factors in the table below to calculate each colligative property:
Van't Hoff Factors at 0.05 m Concentration in Aqueous Solution
Solute/Expected/Measured
Nonelectrolyte11
NaCl21.9
MgSO421.3
MgCl232.7
K2SO432.6
FeCl343.4


Calculate the osmotic pressure of a 9.3×10−2 M potassium sulfate solution at 306K.

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Our tutors have indicated that to solve this problem you will need to apply the The Colligative Properties concept. You can view video lessons to learn The Colligative Properties. Or if you need more The Colligative Properties practice, you can also practice The Colligative Properties practice problems.

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