Alcohols and carboxylic acids Flashcards
What functional group do alcohols contain?
-OH
What are the names and formulae of the first four
alcohols?
Methanol (CH3OH)
Ethanol (C2H5OH)
Propanol (C3H7OH)
Butanol (C4H9OH)
Draw the displayed formula of ethanol
https://pmt.physicsandmathstutor.com/download/Chemistry/GCSE/Notes/Edexcel/9-Separate-Chemistry-2/Flashcards%20-%20Topic%209%20Separate%20Chemistry%202%20-%20Edexcel%20Chemistry%20GCSE.pdf
153
How is boiling point affected by an alcohol’s chain
length?
As the chain length of an alcohol
increases, boiling point increases.
How can an alkene be produced from an alcohol?
During a dehydration reaction with
sulfuric acid. Water is also produced.
What functional group do carboxylic acids contain?
-COOH
What are the names and formulae of the first four
carboxylic acids?
Methanoic acid (HCOOH) Ethanoic acid (CH3COOH) Propanoic acid (C2H5COOH) Butanoic acid (C3H7COOH)
Draw the displayed formula of propanoic acid
https://pmt.physicsandmathstutor.com/download/Chemistry/GCSE/Notes/Edexcel/9-Separate-Chemistry-2/Flashcards%20-%20Topic%209%20Separate%20Chemistry%202%20-%20Edexcel%20Chemistry%20GCSE.pdf
163
Fill in the blank: ‘Solutions of carboxylic
acids have typical ______ properties’
Acidic
How can ethanol be converted into
ethanoic acid?
Oxidation
Butanol is oxidised. What is the product?
Butanoic acid
Why do members of the same homologous series
undergo similar reactions?
The molecules have the same functional
group so have similar chemical
properties.
Which renewable process can be used
to produce ethanol?
By fermentation of carbohydrates in
aqueous solution with yeast (provides
enzymes).
What conditions are required for the fermentation of
glucose to form ethanol?
- Anaerobic conditions (no oxygen).
- Warm to increase rate of reaction
without denaturing enzymes in the
yeast.
What is the word and balanced chemical equation
for the fermentation of glucose?
Glucose → ethanol + carbon dioxide
C6H12O6 → 2C2H5OH + 2CO2
(Check google of unsure)
