Homework Help: chemistry

Posted by lily on Saturday, September 10, 2011 at 10:27pm.

The osmotic pressure of a solution containing 5.00 mg of an unknown protein per 10
mL of solution was 2.73 torr at 25 °C. Find the molar mass of the unknown protein.

chemistry - DrBob222, Saturday, September 10, 2011 at 11:31pm
pi = MRT
Substitute and solve for molarity, M.
Then M = moles/L
You know M and L, solve for moles, then
moles = g/molar mass. Solve for molar mass.

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