pH Workshop Flashcards
1
Q
Bronsted-Lowry Definition
A
Acids DONATE protons
Bases ACCEPT protons
2
Q
Ka
A
acid dissociation constant
- large Ka = strong acid
- small Ka = weak acid
3
Q
Strong Acid Dissociation
A
Completely dissociates
4
Q
pH + pOH =
A
pH + pOH = 14
5
Q
Henderson Hasselbalch Equation
A
pH = pKa + log [A-]/{HA}
GIVES RATIO NOT NUMBERS
6
Q
when pH=pKa
A
[A-]=[HA]
protonated = deprotonated
7
Q
when pH > pKa
A
[A-] > [HA]
deprotonated form dominates
8
Q
when pH < pKa
A
[A-] < [HA]
protonated species dominates
9
Q
logx=y
A
10^y=x
pH = -(what exponent concentration was raised to)
10
Q
Every 1 pH unit away from pKa=
A
change [A-]/[HA] by a factor of 10
11
Q
pI
A
isoelectric point
- pH at which NO NET CHARGE exists
