L2. BUFFER SOLUTIONS Flashcards
(7 cards)
1
Q
These are compounds or mixtures of compounds that by their presence in the solution resist changes in the pH upon the addition of small quantities of acid or alkali.
A
Buffers
2
Q
Types of buffers. (2)
A
- Acidic buffers
- Basic buffers
3
Q
It is a combination of weak acid and its salt with a strong base.
A
Acidic Buffers
4
Q
It is a combination of weak base and its salt with a strong acid.
A
Basic Buffers
5
Q
The pH of blood is maintained at about __.__ by two buffer systems.
A
7.4
6
Q
APPLICATION: pH OF BLOOD
These are present in plasma. The plasma contains;
- carbonic acid / carbonate & acid /alkali sodium salt of phosphoric acid
A
Primary Buffers
7
Q
APPLICATION: pH OF BLOOD
These are present in erythrocytes which are;
- oxy-haemoglobin / haemoglobin & acid / alkali potassium salts of phosphoric acid.
A
Secondary Buffers
