Acid/Base Theories
Conjugate Acid
Conjugate Base
pOH + pH
Titration
100
What is the Arrhenius theory?
- Acids produce hydrogen ions in solution
- Bases produce hydroxide ions in solution
100
What is the acid in the following reaction?
NH3 + H20-> NH4+ + OH-
H20
100
What is the base in the following reaction:
NH3 + H20-> NH4+ + OH-
NH3
100
What is the pH of an acid with a hydrogen concentration of 1.00x10-1
1
100
What is the point called where the hydrogen ions and hyroxide ions are equal with each other in a neutralize reaction?
equivalence point
200
What is the Brønsted-Lowry theory?
– Acid is a proton donor
– Base is a proton acceptor
200
What are the conjugate bases of H3PO4, H2PO4-, HPO42-?
H2PO4-, HPO42-, and PO43-
200
What are the conjugate acids for the follwing bases
NH3, H20, CH3OO-
NH4+, H30+, CH3OOH
200
A weak acid is diluted until the pH is 5.43. What is the concentration of H+?
3.72*10-6 M
200
What is the molarity of a base if we used 25ml of that base to neutralize 20ml of a 0.25M acid solution?
0.20M base
300
In the Bronstad and Lowry theory the Acid is the proton donator or acceptor?
donator
300
As acid strength increases, conjugate base strength ______.
decreases
300
As bases strength increases, conjugate base strength ______.
decreases
300
A weak base is diluted until the pH is 9.22. What is the concentration of OH-?
1.66*10-5 M
300
If it takes 54.0 mL of 0.1 M NaOH to neutralize 125 mL of an HCl solution, what is the Molarity of HCl?
0.04M HCl
400
In the Bronstad and Lowry theory the base is the proton donator or acceptor?
acceptor
400
Conjugate acid of a base is obtained by:
Addition of a proton to the base.
400
Conjugate base of an acid is obtained by:
take away of a proton to the base.
400
What is the pOH of an acid if it has a hydrogen concentration of 1.23x10-2?
12.1
400
If it takes 50 mL of 0.5 M NaOH solution to completely neutralize 125 mL of HCl solution, what is the concentration of HCl?
0.2M HCl
500
List the acid, base, conjugate acid, conjugate base for the follwing reaction:
H2SO4 + HSO4- -> H2SO4 + HSO4-
Acid, base, Conjugate base, Conjugate Acid
500
What are the conjugate pairs in this reaction:
and 
500
What is the conjugate base of the acid in the following reaction:
HCl + H20-> ?
Cl-
500
What is the pH of a base if it has a hydroxide concentration of 2.67x10-3
11.43
500
A student titrates 20.0ml of 0.25M H2SO4 to neutralize an unkown amount of NaOH. It was netrulized at 25ml of base. What is the concentration of the base. Hint: you will need to create and balance the equation.
0.40 M NaOH