5.3 Organics II
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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 atm
What are the advantages of Hydration of ethne
Advantages: - Fast - Continuous (keeps going) - Makes one, pure product
What are the disadvantage of hydration of ethne
• High energy ( requires high temp and pressures) • Non- renewable raw material
What are the advantages of Fermentation of Glucouse
Advantages: - Renewable raw material - Low energy ( requires low temp and pressure)
What are the disadvantage of the fermentation of Glucouse
Disadvantage: - Slow - Not continuous ( has to be batched) - Makes impure ethanol (mix in with yeast)
Why does the fermentation of glucouse have to be done in anaerobic conditions
To prevent ethanol from oxidising and forming ethanoic acid
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