Chemistry 2 SY 2024-2025
Third Quarter
Worksheet #1
Theories on Acids and Bases
Name: Zy D Sangilan
· Graviton O Photon O Tau
Section: O Electron O
.
Date: Feb 9 2013
Score:
/ 50
.
,
↑
1. Complete the equations for the ionization of the following Arrhenius acid or base
in water.
a. HNO3(aq) + H2O(l) →
Hs0ac
b. NH3(aq) + H2O(l) →
OHag)
c. HBr(aq) + H2O(l) →
Hz0ng
+
NHpT
+
+
NOscag)
Bring
OH cap CHyNHstcap
d. CH3NH2(aq) + H2O(l) →
+
e. CH3COOH(aq) + H2O(l) →
HyOtaq
+
CHyLOOcap
-
2. Identify the Brønsted-Lowry acid (BLA), base (BLB), conjugate acid (CA), and the
conjugate base (CB) in each of the following by writing the associated letters below
their respective chemical species.
BLA
BLB
CA
[B
a. HNO3 + H2O → H3O+ + NO3BLB
BLA
[B
CA
+
4
b. NH3 + H2O ⇌ NH + OHBLB
BLA
[B
CA
-
4
c. H2SO4 + OH ⇌ HSO + H2O
BLB
BLA
2
CA
LB
-
d. C2H3O + H2O ⇌ OH + HC2H3O2
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BLB
(B
CA
BLA
e. H2PO4- + H3O+ ⇌ H3PO4 + H2O
3. What is the conjugate acid of the
following?
4. What is the conjugate base of the
following?
a. C2H3O2-
HCcHzO2
a. NH4+
NHy
b. CO32-
HCO3-
b. H2CO3
HC85
c. Cl-
HCl
c. H2O
OH-
d. HCO3-
HzL0z
d. HCO3-
202-
e. H2PO4-
H POq
e. H2PO4-
HPO
,
5. Which of the following is a strong acid? Encircle all that applies.
CH3OH
H2SO3
H2O2
H2S
H2CO3
O
HNO2
HF
HCO3-
O
HCl
H2O
O
HClO4
HBr
O
HClO3
CH3COOH
HNO2
6. Identify the Lewis acid (LA) and the Lewis base (LB) in the following reactions:
LA
LB
a. Zn2+ + 4 NH3 ⇌ Zn(NH3)42+
LB
LA
b. (CH3)3N + BF3 ⇌ (CH3)3NBF3
LA
LB
3+
c. Al + 6 H2O ⇌ Al(H2O)63+
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Postal Address: Brgy. Bito-on, Jaro, Iloilo City
Tel. No. : (033)329-2011, (033)326-5973, (033)503-2578
Website: https://wvc.pshs.edu.ph
Fax No. : (033)329-5644