W5 Acid Base and pH ll Flashcards
1
Q
Strong acid and strong base=?
A
Neutral salt
2
Q
Strong acid and Weak base=?
A
Acidic salt
3
Q
Weak acid and Strong base=?
A
Basic salt
4
Q
What is a buffer?
A
Able to resist changes in pH on addition of small amounts of acid or base
Solution containing two components:
weak acid and its conjugate base (i.e. CH3COOH and CH3COO−) or weak base and its conjugate acid (i.e. NH3 and +NH4)
5
Q
pKa definition?
A
The pH at which it is exactly half-dissociated
6
Q
Stronger bases have a large… and a small …
A
Large pKa and a small Ka
7
Q
Weak bases have a
A
