✔ 最佳答案
1a.
depends on how many acid molecules react w/ glycerol.
based on different stoichiometry & isomerism, there could be 5 products.
assuming excess acid, I'd guess "propane-1,2,3-triyl triethanoate" ;
or "glyceryl triethanoate", which sounds like some common name instead.
oh well, after looking up Wikipedia, it gives me "1,3-diacetyloxypropan-2-yl acetate" as IUPAC name,
and " 1,2,3-triacetoxypropane", "triacetin" and "glycerin triacetate" as common names.
1b.
triglycerol? are you sure it's not triglyceride?
the later is true for the product with 3 equivalent of ethanoic acid, while i haven't heard of the first one.
1c.
difficult. normally i'd say "yes", even after considering the simplest fatty acids like methanoate (formate) and ethanoate (acetate).
but there're some weird fatty acids with hydroxy -OH on the alkyl chains.... surely that's rare.
2.
the atoms are covalently bonded; when in solid, aqueous or sometimes gaseous forms, the molecules are held by ionic interactions owing to, yes, ability to form zwitterions. if forced to choose, i'd say "ionic".
