Ester:fats and oils Flashcards
what is the use of fat?
good source of energy
transporting vitamins which one not soluble in water
vital for institution and protection of organs
polarity of fat/oil
non polar
what are fats and oils made with?
alcohol (glycerol) (propan-1,2,3-triol) and any carboxylic acid
why are fats and oils known as tri-ester
contains 3 ester links
why do fats and oils more viscous and higher bp than other alcohols
forms more hydrogen bonds between molecules
what are fatty acids?
carboxylic acid that contains a large number of carbon atoms and react with glycerol to make fats/oils
what is the structure of fats?
saturated and are solid
what is the structure of oils?
unsaturated and are liquids
why are fats able to pack closely together?
no double binds, allow strong ldf to hold fat molecules together
why are oils not able to pack closely together?
distorted structure caused by the double bond
fewer ldf between molecules-less energy low bp than ftas
what happens to the bp as unsaturation number increases?
lower bp
what can unsaturated compounds do?
decolourise bromine solution quickly
as the number of double bond increases what is required more of?
bromine solution
