Acid Base 1 : Tut 1

1. Name the 2 theories that serve as models for the definition of acids and bases.
• Arrhenius theory
• Lowry-Brønsted theory

2. Define an acid and a base in terms of Arrhenius's theory.
An acid is a substance that produces hydrogen ions (H+);
also called hydronium ions (H3O+) when it dissolves in water.

A base is a substance that produces hydroxide ions (OH-) when it dissolves in water.

3. Define acids and bases in terms of the Lowry-Brønsted theory.
An acid is a proton (H+ ion) donor.
A base is a proton (H+ ion) acceptor.

4. Which of the two theories includes water as an essential component?
Arrhenius

5. Which theory proposes the conjugate acid-base pair concept?
Lowry-Brønsted theory

6. Study this reaction :



What is X?

a base








Copyright ©
V. Gokal
academic@afrihost.co.za