A2: Acids and bases Flashcards
1
Q
Bronsted-Lowry acid
A
proton donor
2
Q
Bronsted-Lowry base
A
proton acceptor
3
Q
What is a conjugate acid-base pair
A
Two species that can be interconverted by the transfer of a proton
4
Q
Hydronium ion formula
A
H3O+
5
Q
The number of hydrogen ions in the acid which can be replaced defines the acid as:
A
Monobasic, dibasic, tribasic
6
Q
pH=
A
-log[H+]
7
Q
[H+]=
A
10^-pH
8
Q
Kw=
A
[H+][OH-]
9
Q
Kw (ionic product of water) value
A
1x10^-14
10
Q
Ka expression
A
[H+][A-]/[HA]
11
Q
pKa=
A
-log(Ka)
12
Q
Ka=
A
10^-pKa
13
Q
Ka expression after assumptions
A
[H+]^2/[HA]
14
Q
Assumptions needed to simplify the Ka expression
A
[H+]=[A-] (neglecting dissociation from water)
[HA]initial = [HA]equilibrium
15
Q
Equivalence point
A
Volume of one solution that exactly reacts with the volume of the other solution
