## Chemistry and Chemical Reactivity (9th Edition)

a) From figure 11.12: 400 mmHg b) Since volatility is inversely proportional to the strength of intermolecular forces: Diethyl ether $\lt$ ethanol $\lt$ water c) At this temperature, only diethyl ether has a vapor pressure bigger than 400 mmHg, so it's a vapor, and the other two are liquids.