Topic 12- Acid-Base equilibria Flashcards
1
Q
What is meant by a Brownstead-Lowry acid?
A
proton donor
2
Q
What is meant by a Brownstead-Lowry base?
A
proton acceptor
3
Q
What is an amphoteric substance?
A
a substance which can either act as an acid or a base
4
Q
Formula for Kw
A
Kw= [OH-][H+]
5
Q
pH range for methyl orange
A
3.10-4.40
6
Q
pH range for bromophenol blue
A
2.80-4.60
7
Q
pH range for bromothymol blue
A
6.00-7.00
8
Q
pH range of phenol red
A
6.80-8.40
9
Q
pH range of phenolphthalein
A
8.20-10.00
10
Q
What is a buffer solution
A
A solution that minimises the change in pH when a small of either acid or base is added
