Organic Chemistry Flashcards
List the prefixes for 1, 2, 3, 4 and 5 carbons.
- Meth
- Eth
- Prop
- But
- Pent
What is cracking?
Breaking down large molecules into smaller, less viscous, more flammable molecules.
Hw do you make ethanoic acid?
Oxidising ethanol
Which oxidising agent speeds up the oxidation of ethanol?
Acidified potassium manganate VII.
Hw do you identify carboxylic acids?
Functional group COOH
state the chemical formula for ethanoic acid
CH3COOH
State the molecular formula for ethanoic acid
C2H4O2
State the empirical formula for ethanoic acid.
CH2O
Ethanol + ethanoic acid –> ?
Ethylethanoate + water
How are the properties of hydrocarbons affected with the length of chain? (3)
The longer the chain..
- Higher mpt
- More viscous
- Less flammable
What is a macromolecule?
A large molecule made up from small units.
What is a homologous series?
A ‘family’ of similar compounds with similar properties due to e presence of the same functional group.
How do we identify alcohols?
Functional group OH
How does ethanol burn?
With a clean flame
Why is ethanol useful as a solvent?
It dissolves polar and no polar chemicals
Wy is ethanol useful as a fuel? (2)
- It is highly exothermic
2. It burns with a clean flame.
Ethene + steam –> ?
Ethanol
How can we make ethanol? (2 methods)
- Fermentation
2. Catalytic addition of steam to ethene
State the general formula for alcohols.
CnH2n+1OH
State the 2 main uses of ethanol.
- As a fuel
2. As a solvent
If a molecule contains a C=C is it saturates or unsaturated?
Usaturated
Ethene + hydrogen –> ?
Ethane