Chapter 12: Acids And Bases (Key Definitions)

Question 1

What is Arrhenius’ definition of an acid?

2

Answer 1

• an acid is a substance that dissociates in water

- to produce H+ ions

Question 2

What is Arrhenius’ definition of a strong acid?

2

Answer 2

• a strong acid is a substance that almost completely dissociates in water
• to give hydrogen ions

Question 3

What is Arrhenius’ definition of a week acid?

2

Answer 3

• a weak acid is a substance that only slightly dissociates in water
• to give hydrogen ions

Question 4

What is Arrhenius’ definition of a base?

2

Answer 4

• a base is a substance that dissociates in water

- to produce OH- ions

Question 5

What is Arrhenius’ definition of a strong base?

2

Answer 5

• a strong base is a substance that almost completely dissociates in water
• to give hydroxide (hydroxyl) ions

Question 6

What is Arrhenius’ definition of a weak base?

2

Answer 6

• a weak base is a substance that only slightly dissociates in water
• to give hydroxide ions

Question 7

What is the Bronsted-Lowry definition of an acid?

1

Answer 7

-an acid is a proton donor

Question 8

What is the Bronsted-Lowry definition of a base?

1

Answer 8

-a base is a proton acceptor

Question 9

What is the Bronsted-Lowry definition of a strong acid?

1

Answer 9

-a strong acid is a good proton donor

Question 10

What is the Bronsted-Lowry definition of a weak acid?

1

Answer 10

-a weak acid is a poor proton donor

Question 11

What is the Bronsted-Lowry definition of a strong base?

1

Answer 11

-a strong base is a good proton acceptor

Question 12

What is the Bronsted-Lowry definition of a weak base?

1

Answer 12

-a weak base is a poor proton acceptor