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Osmotic Pressure and Molar Mass

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Osmotic Pressure. What is the osmotic pressure (in mm Hg) of a solution at 25.0°C made by dissolving 0.0135 grams of tryptophan (C11H12N2O2) in enough water to give 75.0 mL of solution?

Osmotic Pressure & Molar Mass. A 0.0116-gram sample of an unknown compound is dissolved in enough water to give 85.8 mL of solution at 25.0°C. If the solution has an osmotic pressure of 18.2 mm Hg, what is the molar mass of the unknown compound?

Solution Preview

According to Van't Hoff equation, osmotic pressure is given by,

P = c*R*T

Where, c is the molar concentration of the solution, R is the gas constant and T is the temperature.

c = n/V = w/M*V (where n is the number of ...

Solution Summary

This solution involves the calculation of osmotic pressure and molar mass using the Van't Hoff equation.