Water Flashcards
1
Q
How do water soluble molecules arrange themselves in water?
A
Water-water hydrogen bonding is replaced by water-solute hydrogen bonding as its more favourable
2
Q
How do uncharged molecules arrange themselves in water?
A
- So as to minimise disruption to the system
- Forms “cages”
3
Q
Define “amphipathic”
A
- A molecule containing a hydrophobic and hydrophilic region
4
Q
Example of an amphipathic molecule?
A
Phospholipid
5
Q
How do phospholipids minimise water disruption?
A
They form bilayers or micelles
6
Q
What is pH a measure of?
A
Proton concentration
7
Q
What are buffers?
A
Solutions of weak acids that dissociate to form a conjugate acid-base pair.
