Acids and Bases According to Arrhenius

The video tutorial introduces the Arrhenius theory of acids and bases, explaining that acids produce H+ ions and bases produce OH- ions when dissolved in water. It provides examples of strong and weak acids, highlighting their dissociation behavior. The tutorial also discusses the classification of acids into strong and weak categories, with examples like hydrochloric acid and acetic acid to illustrate the concepts.

What is the main characteristic of an acid according to Arrhenius theory?

• It produces H+ ions in water.

• It produces OH- ions in water.

• It is always a solid at room temperature.

• It does not dissociate in water.

Which of the following is an example of an acid that dissociates in water to produce H+ ions?

• Ca(OH)2

• HCl

• NH3

• NaOH

What ion is produced when NaOH is dissolved in water?

• Na+

• OH-

• H+

• Cl-

According to Arrhenius, what defines a base?

• A substance that produces H+ ions in water.

• A substance that produces OH- ions in water.

• A substance that does not dissolve in water.

• A substance that is always acidic.

What is a strong acid according to the Arrhenius theory?

• An acid that partially dissociates in water.

• An acid that completely dissociates in water.

• An acid that does not dissociate in water.

• An acid that is always in gaseous form.

Which of the following is a strong acid?

• H2CO3

• NH4OH

• CH3COOH

• HCl

What is the main difference between strong and weak acids?

• Weak acids are always in solid form.

• Strong acids do not dissociate in water.

• Weak acids completely dissociate in water.

• Strong acids completely dissociate in water.

Which of the following is an example of a weak acid?

• NaOH

• HCl

• H2SO4

• H2CO3

What happens to acetic acid when it is dissolved in water?

• It partially dissociates into ions.

• It completely dissociates into ions.

• It does not dissociate at all.

• It forms a solid precipitate.

In the context of weak acids, what does partial dissociation mean?

• The acid turns into a base.

• All molecules dissociate into ions.

• Some molecules dissociate while others remain intact.

• No molecules dissociate into ions.