Prekallikrein, a blood protein, has a molar mass of 85000 g/mol. A solution is made by dissolving 570. mg of this protein in 10.0 mL water. Calculate the osmotic pressure of this solution at 37.0°C in mm Hg.
_________ mm Hg
Moles of protein dissolved = Mass/MW = 0.570/85000 = 0.0000067
Molarity of solution, C = Moles/Volume = 0.0000067/0.010 = 0.00067 M
Osmotic pressure, P = C*R*T = 0.00067*8.314*(273+37) = 1.7268 Pa = 0.01295 mm Hg