## Chemistry and Chemical Reactivity (9th Edition)

Freezing point and vapor pressure depression and boiling point elevation are proportional to $i.m$, and for the ionic compounds, i is the number of ions released per compound. i) nonionic: 0.20 m ii) $3\times 0.10\ m=0.30\ m$ iii) $2\times 0.12\ m=0.24\ m$ iv) $3\times 0.12\ m=0.36\ m$ a) iv, b) iv c) i, the highest vapor pressure will be the one with the lowest vapor pressure depression.