Find the vapor pressure of water at 25°C for a solution made by dissolving 100.0 g of sodium sulfate in 500.0 g of water. (The vapor pressure of pure water at 25°C is 22.8 mm Hg.)
a) 22.8 mm Hg
b) Greater than 22.8 mm Hg
c) Less than 22.8 mm Hg
d) Cannot be determined from the given information