Acids And Bases Flashcards
1
Q
The Brønsted-Lowry theory is-
A
Acid= H+ donor Base= H+ acceptor
2
Q
The equilibrium constant (kc) =
A
[H+] x [OH-]
[H2O]
3
Q
Kw=
A
Ionic product of water.
kw= kc[H2O]
4
Q
Smaller pH =
A
More H+
5
Q
Larger pH=
A
Less H+ MORE OH-
6
Q
pH=
A
-log[H]
7
Q
pH in bases=
A
[H+]= 1.0x1014
pH
-log[ans]
8
Q
What does not completely dissociate?
A
A weak acid
9
Q
pka= -log10 ka
A
Ka= 10 -pka
10
Q
A buffer can…
A
Resist a significant change in the concentrations when an acid/alkali is added
11
Q
Weak buffer…
A
Adds H+
12
Q
Conjugate base…
A
Removes H+
13
Q
In biological systems, a constant pH is required for…
A
Enzymes to work at a specific pH value
14
Q
Le Chatelier Principle=
A
System will oppose any change to return to equilibrium
15
Q
Weak acid buffer calculation
A
Ka = [H+][A-]
[HA]
[H+]= ka [HA]
[A]
