Isomerism Flashcards
Name the 3 pairs in isomerism
🔥alkene &cycloalkane
🔥alcohol ðes
🔥carboxylic acid &esters
Give the IUPAC name for isooctane
⚡️when it says the IUPAC name it means you need to write that long ass name with methyls and numbers and shit
2, 2, 4 trimethyl
Give the IUPAC name of the position isomer of but-1-ene
When it’s talking about POSITION you have to change the chain length
But-1-ene C=C-C-C
But-2-ene C-C=C-C
Give the IUPAC name of the chain isomer of but-1-ene
Methylpropene because
☄️chain isomer is all about the chain lengths chaining
☄️you know by IUPAC it’s that long name with methyls wnd stuff
Draw the displayed formula of a functional group isomer of but-1-ene
So remember your pairs e.g. Alkenes and cycloalkane so but-1-ene is…
Cyclobutane
Give the general formula of the homologous series of straight chain bromoalkanes that contains one bromine atom per molecule
The general formula is literally in the name BROMOALKANE but instead of CnH2n+2 it’s CnH2n+1Br
State what is meant by the molecular formula ?
The actual numbe of atoms of each element in a molecule
State two characteristics of a homologous series
🌜same functional group
🌜same general formula
How many isomers have the molecular formula C5H12
3
How many structural isomers have the molecular formula C4H9Br
4
An alkane contains 30 hydrogen atoms per molecule. what is its empirical formula?
C7H15
A hydrocarbon W contains 92.3% carbon by mass. The relative molecular mass of W is 78.0
Calculate the empirical formula of W
Calculate the molecular formula of W
Mr = 78
C: H
- 3: 7.7. (/12)
1: 1 EF= CH
12+1=13 78/13 =6. =C6H6
Name the following compound
CH3CH(CH)CH3
2-methylpropane
Name the following compound
CH3CH(Br)CH2Br
1,2 - dibromopropane
Name the following compound
CHCL=CHCL
1,2-dichloroethene
Name the following compound
CH3CH2CH2CH=CH2
Pent-1-ene
Name the following compound
CH3COCH3
Propanone
Name the following compound
CCl3COOH
Trichloroethanoic acid
Name the following compound
CF(Cl)(Br)CH(Cl)(F)
1-Bromo-1,2-dichloro-1,2-difluoroethane
Name this alkyl group:
CH3
Methyl
Name this alkyl group:
CH3CH2
Ethyl
Name this alkyl group:
CH3CH2CH2
Propyl
What is the empirical formula of C9H18
CH2
Name this compound:
CH3CH2CH2CH(CH3)CH3
2-methylpentane
Pentane and 2-methylbutane are isomers. Name this type of isomerism
Chain isomerism
