LE 2.02- PH Of Strong Acids And Bases

Question 1

Is water an ACID or a Base?

Answer 1

Water can act as both an acid and a base (amphiprotic). It can both accept and donate protons.

Question 2

What is the EQUILIBRIUM EXPRESSION and CONSTANT for the auto-ionization of water?

Answer 2

Kw=[OH-][H3O+]
Kw=1x10^-14
*(very little products are formed)

Question 3

The acidity/ basicity of a solution is based on the relative concentration of [H3O+] and [OH-]. What is the concentration comparison for ACIDIC SOLUTIONS in terms of [H+] and [OH-]?

Answer 3

[H+]>[OH-]

Question 4

The acidity/ basicity of a solution is based on the relative concentration of [H3O+] and [OH-]. What is the concentration comparison for NEUTRAL SOLUTIONS in terms of [H+] and [OH-]?

Answer 4

[H+]=[OH-]

Question 5

The acidity/ basicity of a solution is based on the relative concentration of [H3O+] and [OH-]. What is the concentration comparison for BASIC SOLUTIONS in terms of [H+] and [OH-]?

Answer 5

[H+]<[OH-]

Question 6

What is the definition of pH?

Answer 6

PH= -log [H3O+]

Question 7

What is the definition of pOH?

Answer 7

POH= -log [OH-]