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April 20, 2014

Homework Help: Chemistry

Posted by Anonymous on Monday, December 10, 2012 at 7:09pm.

A reverse osmosis unit is used to obtain drinkable water from a source that contains 0.530 g NaCl per liter. What is the minimum pressure (in torr) that must be applied across the semipermeable membrane to obtain water? Assume room temperature or about 298 K. (Don′t forget the van′t Hoff factor!)

I'm not really sure what to do with this question. I know for osmotic pressure, the equation is iMRT, but I don't know what exactly to do.

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