A solution containing 28.15 mg of an unknown protein per 23.5 ml of solution was found to have an osmotic pressure of 3.34 torr at 32°C. What is the concentration of the protein in the solution?
a) 1.2 mg/ml
b) 1.5 mg/ml
c) 1.8 mg/ml
d) 2.0 mg/ml