pH, buffers etc Flashcards
(6 cards)
1
Q
why doesn’t the pH of buffer solutions change when water is added?
A
the change in [H+] and the change in [OH-] is proportional
2
Q
Ka expression
A
Ka = [H+][A-]/[HA]
3
Q
Kw expression
A
Kw = [H+][OH-]
4
Q
Kw name
A
ionic product of water
5
Q
pH formula
A
pH = -log[H+]
6
Q
how to calculate pH of bases?
A
monobasic: [OH-] = [XOH]
dibasic: 2[OH-] = [X(OH)2]
[H+] = Kw/[OH-]
pH = -log([H+])
