# Chem7

Calculate the osmotic pressure (in torr) of a solution containing 17.15 mg of hemoglobin (molar mass 6.5 x 104 g/mol) in 12.8 mL of solution at 25 degrees C.

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1. pi = MRT
M = moles/L.
moles = g/molar mass
Use AR = 0.08206
pi will come out in atm, convert to torr.

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2. Calculate the osmotic pressure of a solution containing 16.50 mg of hemoglobin in 13.9 mL of solution at 29 ∘C . The molar mass of hemoglobin is 6.5×104 g/mol.

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