At 750 °C,water Has an Equilibrium Vapor Pressure of 289

At 75.0 °C,water has an equilibrium vapor pressure of 289.1 mm Hg.If 4.22 g H₂O is sealed in an evacuated 5.00 L flask and heated to 75.0 °C,what mass of H₂O will be found in the gas phase when liquid-vapor equilibrium is established? Assume any liquid remaining in the flask has a negligible volume.(760 mm Hg = 1 atm,R = 0.0821 L.atm/mol.K)

A) 0.240 g
B) 1.20 g
C) 2.64 g
D) 3.02 g
E) 4.22 g