Acids and Bases

Question 1

What are the ways to form a buffer? (4 ways)

Answer 1

Acidic buffer

1. Weak acid and its salt
2. Weak excess acid and a strong base

Basic buffer

3. Weak base and one of its salts
4. Excess of a weak base and a strong acid

2 main ways:
Weak acid and conjugated base
Weak acid and strong alkali

Question 2

What is a buffer?

Answer 2

A solution that resist changes in pH when small amounts of acid or alkali are added.