Water Flashcards
1
Q
Water is amphoteric which means?
A
It acts as both an acid and a base
It can dissociate to both hydronium or hydroxide atoms
2
Q
Amphipathic means
A
Has both hydrophilic and hydrophobic parts
3
Q
Proton acceptors are:
Proton donors are:
A
Bases accept and acids donate
4
Q
Henderson hasselbach equation is used to calculate?
A
The concentration of a weak acid and it’s conjugate base
5
Q
If pH is less than pKa the substance is
A
Protonated
Ex acid-COOH uncharged acid and a base-NH3+ charged base
6
Q
If pH is greater than pKa then substance is
A
Deprotonated
Ex. Acid-COO acid charged and base-NH2 base uncharged
7
Q
Most important extra cellular buffer
A
Bicarbonate
8
Q
Most important intracellular buffer
A
Proteins
9
Q
Maximum buffering occurs at pH ____ unit from pKa
A
+/- 1 unit
