Homework Help: chemistry

Posted by sarah on Thursday, September 29, 2011 at 2:57pm.

A dilute aqueous solution of CaCl2 contains 0.159 grams of solute per liter of
solution. It is fully dissociated. What is the osmotic pressure of the solution
against a membrane at 20.0 °C?

chemistry - DrBob222, Thursday, September 29, 2011 at 3:09pm
pi = iMRT
i = 3 for CaCl2
moles = grams/molar mass CaCl2, then M = moles/L
R = 0.08206
T = 20 in kelvin.

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