Calculate the Volume of Solution That Has a Vapour Pressure

Multiple Choice

Calculate the volume of solution that has a vapour pressure of 25.8 mbar and contains 200.3 g of galactose, C₆H₁₂O₆, at a temperature of 22.0 °C. The vapour pressure of pure water at 22 °C is 26.40 mbar, the density of water is 1.00 g mL^-1, and assume no change in volume occurs upon dissolution.

A) 200 mL
B) 91.3 mL
C) 769 mL
D) 862 mL
E) 981 mL