Name _____KEY_____________________________________ Date _________ Period ______
Acid – Base Theories
1.
2.
Summarize the acid-base theories in the table below.
Acid
Base
Arrhenius
Releases H+ in water
Releases OH- in water
Brønsted–Lowry
Proton (H+) Donor
Proton (H+) Acceptor
Classify each of the following as an Arrhenius acid or an Arrhenius base. Then name
each compound.
a. Ca(OH)2Base, Calcium
Hydroxide
b. HNO3 Acid, Nitric Acid
3.
c. HC2H3O2 Acid, Acetic Acid
d. H2SO4
Acid, Sulfuric Acid
Label the acid (A), base (B), conjugate acid (CA), and conjugate base (CB) in each of the
following reactions.
a. H2SO4
+
A

B
b. HC2H3O2
+
A
H2O
+
B
HCl

+
A
H2O

+
B
H2O
A
H3O+
NaCl

+
H3O
+
H2CO3
C2H3O2CB
+
H2CO3
CA
+
CA

NH4+
CA
CB
B
e. HCO3-
+
CA
A
-
HSO4CB
B
c. NaHCO3
d. HCO3
NH3
CO32CB
+
CA
OHCB
4. Give the conjugate base for each of the following Brønsted–Lowry acids:
a. HI
I-
c. H2CO3
HCO3-
b. NH4+
NH3
d. HNO3
NO3-
5. Give the conjugate acid for each of the following Brønsted–Lowry bases:
a. CN–
HCN
c. CH3COO–
CH3COOH
b. O2–
OH-
d. NH3
NH4+