11. basic organic concepts Flashcards
define:
general formula
the simplest algabraic formula of a member of a homologous series
define
skeletal formula
removes hydrogen bonds shows carbon sekeletal bonds with its functional groups
define
empirical formula
simplest whole number ratio of atoms of each element present in a compound
define
molecular formula
the actual number of atoms of each element in a compound
define
structural formula
minimal detail that shows the arrangment of atoms in a molecule carbon by carbon with H and functional groups
define
Displayed fromula
shows how each atom is arranged and bonded
unsaturated vs saturated
saturated - single bonds only
unsaturated- contains one or more carbon-to-carbon double bonds
the U looks like double bond symbol
organic chemistry is
study of structure properties and reaction sand compositions of carbon containig compounds
hydrocarbons are
compounds containing hydrogen and carbon only
Use of organic chemistry:
detergents
dyes and pigments
cosmetics
pharmaceuticals (and medication)
plastics
Homologous Series is….
A family of organic compounds that have the same general formula. Each successive
member differs by a –CH2 unit, they all have similar chemical properties and a gradual change in
physical properties.
Nomenclature
a system of naming
carbon chain lengths 1-10
and 2-4 for multiple functional grps
- meth
- eth
- prop
- but
- pent
- hex
- hept
- oct
- non
- de
- n/a
- di
- tri
- tetra
Aliphatic:
carbon atoms are joined to each other in unbranched (straight) or branched chains, or non aromatic rings
Alicyclic:
carbon atoms are joined to each other in non-aromatic rings with or without side chains
Aromatic:
some or all of the carbon atoms are founded in a benzene ring.
Benzene
Contains a delocalised
electron system
Molecular formula: C6H6
Empirical formula: CH
alycyclic is also
- alyphatic
- branched
- un branched
functional group
groups of atoms responsible for its chemical reactions/characteristics
addition reaction
a reaction in which molecules combine to form a single product
subsituion reaction
reaction in which one atom or a group replaces another
elimination reaction
a type of reaction in which two aroms/grp of atoms are removed from a molecule
homolytic fission
when a covalent bond breaks each bonding atom recieves one electron from the bonding pair to form 2 radicals