100 mg of a protein is dissolved in just...

100 mg of a protein is dissolved in just enough water to make 10.0 mL of solution. If this solution has an osmotic pressure of 13.3mm Hg at `25^@C`, what is the molar mass of the protein? `(R = 0.0821L atm mol^-1 K^-1 and 760mm Hg = 1atm)`

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