Naproxen is a commercially important anti-inflammatory agent that can be isolated from the thyroid gland.A solution of 1.138 g of naproxen in 25.00 g benzene has an osmotic pressure of 4.00 atm at 20°C.The density of benzene is 0.8787 g/mL at this temperature.Calculate the molar mass of naproxen,assuming it remains intact upon dissolution and the density of the solution equals the density of pure benzene.
A) 176 g/mol
B) 230 g/mol
C) 307 g/mol
D) 3.80 × 105 g/mol
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