Organic Chemistry Flashcards
What is a homologous series
A group of compounds with the same general formula and have similar chemical properties
What is an alkene
They contain hydrogen and carbon only and have one double bond
What is fermentation
The process of using yeast to convert carbohydrates (sugars) into alcohol
What conditions do you need for fermentation?
30 to 40 degrees to hot and the enzyme denatures
Anaerobic conditions
How to produce ethanol
If you have a lot of crude oil you can use ethene and steam to produce ethanol, this is cheaper however you can grow sugar cane and ferment it if you have a lot of fertile land.
What are problems with excess alcohol
Reduces activity of nervous system.
Impaired judgement poor balance and coordination.
How to turn ethanol to ethene
Dehydration,
Produces ethene and water
What is ethanoic acid
Vinegar
What is the formula of ethanoic acid
CH3COOH
What is it’s functional group of carboxylic acid
COOH
How does ethanol become ethanoic acid?
Reaction with oxygen
How to make an ester?
Alcohol plus carboxylic acid
Formula for ethyl ethanoate
CH3COOC2H5
What is the functional group of alcohols
OH
What does the carboxylic Acid functional group mean
Anoic acid
How to produce ethanol by fermentation
Mix yeast and a solution of carbohydrates, seal and leave in a warm place . Keep the mixture between 30 and 40 degrees. Keep anaerobic conditions, oxygen converts ethanol into ethanoic acid otherwise. When the concentration of alcohol reaches about 20% fermentation stops as the alcohol kills the yeast.
What do yeast convert carbohydrates into
Sugars and alcohol