ACIDS AND BASES Flashcards
1
Q
Uses of salts
A
Fertilisers
Flame retardant
Fungside , herbicide
2
Q
Acid
A
Proton donor
3
Q
Base
A
Proton acceptor
4
Q
Strong acid
A
Fully disscociates
5
Q
Weak acid
A
Partially dissociates
6
Q
Buffer solution defination
A
Buffer is a solition whoch can resist changed in Ph when a small amiunt of acid / base is added
7
Q
Define acidic buffer
A
Made of a weak acid and a soluble salt of that acid
8
Q
Basic buffer
A
Made of weak base and a so,uble salt of the base
9
Q
Acid base tutration (6marks)
A
- Measure the pH of the acid solution and record
- Add 1cm3 of the base solution
- Stir the mixture
4.Measure the pH and record - Repeat provess until the base in excess
- Add base in smaller increments near the end point
10
Q
Why is [H2O] used in the kw wquation
A
H2O is constant
11
Q
pH and [H+] link
A
The smaller the pH the greater the concentration of H+ ions
12
Q
Water
A
Water very slightly dissociates
