How Do You Calculate Osmotic Pressure for a Molecular Solution?

[23scadoo]

So i have a Chem test tomorrow and out of all the questions on the review this is the only one that i have left. So here it is:

A 1.0g sample of a molecular compound having a molecular weight of 100,000g/mol is dissolved in 100g of water. Calculate the osmotic pressure of the solution in torr at a temperature of 27deg C. (aaume the volume of the solution is 100mL.)

I know that the answer is 1.9torr


Any one up to the challenge?

 

[siddharth]

http://en.wikipedia.org/wiki/Osmotic_pressure"
That link should answer your question