Chapter 19 Acid-Base Theories

Question 0

Arrhenius’ definition of an acid

Answer 0

Acids are hydrogen-containing compounds that ionize to yield hydrogen ions. (H+)

Question 1

Hydronium ion

Answer 1

The ion that forms when a water molecule gains a hydrogen ion.

Question 2

Arrhenius’ definition of a base

Answer 2

Bases are compounds that ionize to yield hydroxide ions (OH-)

Question 3

Bronsted-Lowry theory acid definition

Answer 3

And acid is a hydrogen donor

Question 4

Bronsted-Lowry theory definition if a base

Answer 4

A base is a hydrogen-ion acceptor

Question 5

Conjugate acid

Answer 5

The ion or molecule formed when a base gains a hydrogen ion.

Question 6

Conjugate base

Answer 6

The ion or molecule that remains after an acid loses a hydrogen ion.

Question 7

Conjugate acid-base pair

Answer 7

Consists of two ions or molecules related by the loss or gain of one hydrogen ion.

Question 8

Amphoteric

Answer 8

A substance that can act as either an acid or a base.

Ex) water

Question 9

Lewis acid

Answer 9

A substance that can accept a pair if electrons to form a covalent bond.

Question 10

Lewis base

Answer 10

A substance that can donate a pair of electron to form a covalent bond.

Question 11

Kw

Answer 11

Ion-product constant for water

1.0X10^-14

Question 12

Acidic solution

Answer 12

A solution in which [H+] > [OH-]