Organic Chem Flashcards
(79 cards)
What is Organic Chemistry
branch of chemistry that deals with compounds that contain carbon
Compounds that contain carbon but are not organic are called
They are ex:
inorganic compounds
CO2, CO , CO3 , CN , SiC and anything that has a metal in it
All plastics and fossil fuels are
organic
Why are most compounds organic
Carbon has 4 bonding electrons and can form loads of bonds double triple and long chains
What is refining
technology that gas chem n physical processes of separating complex mixtures into simpler or near pure compounds
What are hydrocarbons
compounds containing only C and H
ex. methane CH4
What are Hydrocarbon derivatives
Compounds derived from hydrocarbon, containing elements like O N S
ex. CH3OH
Alkanes are the
Contain only
They are saturated hydrocarbons meaning
have no benzene rings =
Simplest hydrocarbons
single covalent bonds
each C is bonded to as many atoms as possible single bond only making it solid at room temp
Aliphatic Compounds
What are the simplest hydrocarbons abd they contain
Alkanes containing only single bonds
Aliphatic compounds means
no benzene rings
General formula Alkanes
n represents
CnH2n + 2
number of carbons
Alkanes:
Empirical formula shows
Expanded molecular formula shows
Structural Formula shows
Condensed Structural formula shows
Line formula shows
1- Number of carbons and hydrogens ex. C5H12
2- Number if Hydrogens on carbons
ex. CH3CH2CH2CH2CH3
3- Structure of the molecule and bonds
4- Simplified structure only bobding style showed but alkanes gave single anyway
ex. CH3 - CH2 - CH3
5- simplified structure shows carbon at each corner but no hydrogen drawn assumed ti be bonded to carbon
What are Isomers
compounds with same emphirical firmula but different structure drawn out and diff name
naming alkanes cinsists of 3 parts:
Prefix tells u
Root tells u
Suffix tells u
Prefix + Root + Suffix
Prefix = position and names of any branches from main chain
Root = number of carbons atoms in the longest continuous chain of C
Suffix = series of compounds the molecule belongs to , for alkanes is ane
Side branches end in
yl
What are alkyl groups
named including
how to tell how many of same branch
side branches from the main chain abd end in yl
listed in alphabetical order and include number of the carbons atoms they are attached to
di tri or tetra to tell how many of branches attached to
of carbons root names 1 to 10
Meth
Eth
Prop
But
Pent
Hex
Hept
Oct
Non
Dec
Steps for naming alkanes
- Identify the longest continuous chain of carbons and determine root names and suffix ( meth, eth etc) + ( ane for all single bonds)
- Identify prefix (if there are branches) need the number of carbon its on too
- Put together, use hypen - between number and word but not between last prefix and the root
Alkane properties
Non polar
Only IMFs qnd LD is weak
Small alkanes gases at STP
As chain lenght increases the LD become stronger (liquid)
very large chains waxy solids
The longer the chain the higer the BP
and LD force stronger
Distillation
Uses bp property to separate crude oil into its components
Alkenes have
and are
one double bond
unsaturated hydrocarbons (not bonded to max number of atoms)
highly reactive bc double bond
Non polar compounds are
Polar are
Symmetrical
non symmetrical
Types of bonds and strong to weak
Hydrogen bonds strongest
Dipole Dipole only by polar compounds
London Dispersion weakest all have
General Formula Alkenes
Empirical formula
expanded molecular
structural
Condensed structural
Line strctural
CnH2n , n for alkenes cant be one
only dhows amount of carbons and hydrogens ex C5H10
CH3C(CH3)CHCH3 shows branches in brackets
structural shows both bonds and carbon qnd hydrogen
Condensed shows only bonds
Line corners andcends show carbon no hydrogen and double line shows a double bobd