19.8 Self-Ionization of Water (Kw)

Which of the following is/are true?

a. A hydronium ion is a type of oxonium ion produced by protonation by protonation of water

b. The molecular formula

c. The molar mass of hydronium ion is 19.0232 g/mol

d. All of the above

d. All of the above

A hydronium ion forms as a result of:

a. Dissociation of water

b. When water is the presence of an acid.

c. Association of water

d. Both A & B

d. Both A & B

An BLANK solution is a solution is a solution in which the concentration of hydrogen ions is grater than the concentration of hydroxide ions.

acidic

A BLANK solution is a solution in which the of hydroxide ions is grater than concentration of hydroxide ions is grater than the concentration of hydrogen ions is grater than the concentration of hydrogen ions.

basic

What is the [OH-] of a solution which has a [H+] of 1x10-5M

a. [OH-]= 1x10-9M

b.[ OH-]= 1x10-3M

c. [OH-]= 1x105M

d. [OH+]= 1x10-7M

a. [OH-]= 1x10-9M

The concentration of hydrogen ion a certain aqueos solution is 1.0x10-4M. Calculate the concentration of hydroxide ion.

a. 1.0x10-10M

b. 1.0x10-8M

c. 1.0x10-4M

d. 1.0x10-12M

a. 1.0x10-10M

Which is the expression for the ion-product of water?

a. kw=[H+][OH-]/[H2O]

b. kw=[[H+][OH-]

c. kw=[H+]/[OH-]

d. kw=[H+]+[OH-]

b. kw=[[H+][OH-]

What are the products when two molecules undergo a self-ionization

a. a hydroiunm ion, and an oxide ion

b. two hydrogen molecules and oxygen molecules

c. A hydrogen ion and an hydroxide molecule

d.A hydrogen ion and an oxygen molecule

c. A hydrogen ion and an hydroxide molecule

In the basic solution:

a. The [H+]>10 -7M and the [OH-]=10-7M

b.The [H+] < 10-7M and the [OH-]>10-7M and the [OH-]>10-7M

c. The [H+] > 10-7M and the [OH-]< 10-7M

d.The [H+] = 10-7M and the [OH-]< 10-7M

b.The [H+] < 10-7M and the [OH-]>10-7M and the [OH-]>10-7M

In an acid solution:

a. The [H+]>10 -7M and the [OH-]=10-7M

b.The [H+] = 10-7M and the [OH-]<10-7M

c. The [H+] < 10-7M and the [OH-]> 10-7M

d.The [H+] > 10-7M and the [OH-]< 10-7M

d.The [H+] > 10-7M and the [OH-]< 10-7M