Question

Ethylene glycol (C2H6O2) is a non-volatile and non-electrolyte compound with a density of 1.11 g.cm–3 at 25.0°C. Calculate the volume ethylene glycol that must be added to 675 cm3 of water to reduce the vapor pressure by 3.82% at 25.0°C. The density and vapor pressure of pure water at 25.0°C are 1.02 g.cm–3 and 23.8 torr respectively

Answer 1

The volume of ethylene glycol = 88.8 cm³