Alcohols Flashcards
What is an alcohol?
A homologous series with the general formula CnH2n+1OH
Why do alcohols have higher melting points than alkanes?
As the hydrogen bonding between alcohols is stronger than the van der waals forces between alkanes resulting in alcohols having a higher melting point
Are short chain alcohols soluble in water and if they are why?
They are soluble in water due to Hydrogen bonding
Are long chain alcohols soluble in water and if they are why?
No they are not soluble in water
What two things is alcohol used for in industry?
As solvents and fuels
What is the most common alcohol and what is it often found in?
Ethanol is the most common alcohol and if found in alcoholic drinks.
What influences the physics properties of the alcohols?
They are influenced by the -OH group
What is formed when alkenes react with steam in the presence of a strong acid catalyst?
Alcohols are formed
What is made by the fermentation of ethanol?
Ethano
What are three conditions needed for fermentation of sugars to occur?
Yeast
35 degrees
Anaerobic
What three things does the fermentation of sugar produce?
Ethanol, water and leftover yeast
How can we separate ethanol from water after fermentation?
By fractional distillation
How can we remove the yeast from the mixture produced by the fermentation of sugar?
It can be removed by filtration
Where are four places we can get glucose from to ferment?
Sugar cane, hops, barley, fruit ect
