What is the vapor pressure of a 14.3% by mass aqueous ethylene glycol (HOC2H4OH)
solution at 0°C? The vapor pressure of water
at 0°C is 4.58 Torr.
Answer in units of Torr.

the number of valence electrons for each molecule or ion is shown beneath the structure. remember hydrogen will not have more than two electrons. this hydrogen is part of a covalent bond (sharing two electrons). a double bond here would cause hydrogen to share four electrons with phosphorus.