2.2 Everyday consumer products Flashcards
What are the 2 ways to make ethanol?
What are some uses of ethanol?
Why does the boiling pt of the akanols increase as the chain length increases?
The intermolecular attractions between the molecules increases and require more energy to break them.
What is meant by miscible?
Liquids that “dissolve” in each another
What is the trend in miscibility as we increase carbon chain in alkanols?
They become less miscible.
Why does the Miscib of the akanols decrease as the chain length increases?
The intermolecular attractions between the molecules increases and prevents OH group being attracted to water
What is the general formula of the Alkanols?
Cn H2n+1 OH
List some pros and cons of 2 ways of making ethanol
What is the functional group in Alkanols?
The hydroxyl group
Why are alkanols miscible with water?
The hydroxyl group is polar
Why is pure ethanol unable to conduct electricity?
It is a covalent molecule which doesn’t break down into ions.
What are the 2 reactions of alkanols?
- Combustion
- Dehydration
What happens in a “dehydration” reaction?
A water molecule is removed from an alkanol to form an alkene
What is the catlayst used in a dehydration reaction?
Hot aluminium oxide
