5.3 Organics II Flashcards
What do Alcohol end
-OH
How is Alcohol names formed
Starts with the number of carbon atoms
Ends with OH(Which is it’s functional group)
Formula for Methanol and draw it
CH3OH
Formula for Ethanol and draw it
C2H5OH
Formula Propanol for and draw it
C3H7OH
Formula for Butanol and draw it
C4H9OH
What are the facts that you need to know for Hydration of ethene
Temperature- 300C
Pressure: 65
Catalyst : H3Po4 ( Phosphoric acid)
Raw material: Crude oil provides ethene
What are the facts that you need to know for Fermentation of glucose
Temperature:30
Catalyst: Yeast
Anaerobic reaction: ( to stop microbes oxidation)
Raw Material: Sugar cane- glucose
What is the set temperature and pressure for hydration of ethene
Temp- 300
Pressure:65
What are the advantages of Hydration of ethne
Advantages:
- Fast
- Continuous (keeps going)
- Makes one, pure product
What are the disadvantage of ethne
- High energy ( requires high temp and pressures)
- Non- renewable raw material
What are the advantages of Fermentation of Glucouse
Advantages:
- requires non-renewable material
- Low energy ( requires low temp and pressure)
What are the disadvantage of Glucouse
Disadvantage:
- Slow
- Not continuous ( has to be batched)
- Makes impure ethanol (mix in with yeast)
What does ethanol become when oxidised
ethanoic acid
Name the catalyst used during esterfication
concentrated sulfuric acid
what is the colour change in chemical oxidation
Orange - Green
What do Carboxylic acids end in
-COOH
How are Carboxylic acids NAMES formed
starts- How many carbon atoms it has
Ends with –oic acid
Draw Methanoic acid
Draw Ethanoic acid
Draw Propanoic acid
Draw Butanoic acid
Check carboxylic acids in topic notes
What is vinegar
an aqueous solution of ethanoic acid
What is the behaviour of carboxylic acids
- they are acid
they are H+ donors - they loose it’s H + and become negatively charged
What happens to the name of a carboxylic acid when it reacts with a salt.
Starts as - anoic acid
then ending changes to - oate
What would you observe when a carboxylic acid reacts with a Metal
- effervescence
- solid disappears
What are Neutralisation reactions
Acid+ Metal/ Alkali/Carbonate
What are esters
Esters are a family of organic molecules which form when a carboxylic acid and alcohol join together by loosing an H20 molecule
When an alcohol and Carboxylic acid join together what do they loose
They loose a h20 molecule
OH from the acid
H from the alcohol
What is the Catalyst for Esterification
Concentrated Sulfuric acid
What is the process of Esterification
Chop off - COOH and
- OH
then join as - COO- between monomers
What is the set equation for esterification
Carboxylic acid + Alcohol—-> Ester + water
What is the other name given for esterfication
Condensation
What are the uses for Esters and why
they have distinctive smell
- food flavourings
- Perfumes
What are three ways to get rid of polymers
biodegradable
- Reuse
- Landfill
- Incinerate
