ACID BASE HANDOUT 1
NAME: PRINT________________________________ First Letter of Last Name [ ___ ]
1. Arrehenius Concept:
Acids are substances that when dissolved in water increases the concentration of ______ions. Bases are substances that increase the concentration of _______ ions.
2) Bronsted-Lowry Concept:
Acids are substances that _________ a proton to another substance
Bases are substances that _________ a proton to another substance
3) Name the following acids: HF, H
2
CO
3
, H
3
PO
4 ,
H
2
SO
4
, H
2
SO
3
,
Name the following salts: Na
2
CO
3
, NaHCO
3
, KHSO
3
, and NaH2PO4
What are the parent acids and bases of the above salts?
4) Identify the two conjugate acid-base pairs: a. NH
3
+ H
2
O

NH
4
+
+OH
b. H
2
O + HNO
3

H
3
O+ + NO
3
- c. CH
3
NH
2
+ H
2
O

CH
3
NH
3
+ + OH - d. HF + NH
3

NH
4
+
+ F -
e. HNO
3
+ NO
2

NO
3
-
+ HNO
2
5) Conjugate Pairs:
Write the conjugate acids for each of the following: Cl-, _____ HSO
4
-,____ CN- ____
Write the conjugate base for each of the following: H
2
O ______ H
2
CO
3
______H
3
PO
4
Given: HCN and HCl a) Which is the strong acid and write a chemical equation to show that it is a strong acid. b. Which is a weak acid and write the chemical equation to express this.
5. Decide which species are favored at the completion of the following reaction:
HCN (aq) + Cl
-
(aq)

CN- (aq) + HCl (aq)

6) What is the [H + ] and [OH ] in a solution whose pH = 4.40 and what is the pOH?
7. What is the pH of a 0.02 M nitric acid solution
8. Calculate the [H + ]/pHand [OH ]/pOH for
0.015 M HBr, (assume 100% dissociation) 0.02 M NaOH.
0.02 M Ba(OH)
2. (assume 100% dissociation)
0.03 M H
2
SO
4
9) What is the H
3
O + and pH concentration in a solution labeled:
0.1 M HClO, Hypochlorous acid (K a
= 3.0x10
-8 ) 0.1M HC
2
H
3
O
2
, Acetic Acid (K a
= 1.8 x 10 -5 )
0.1 M NH
3
(aq), Ammonia Solution (Kb= 1.8x10
-5 ) 0.01 M Hydrazine (Kb= 1.26 x10 -6 )
ACID acetic acid butanoic acid formic acid
FORMULA K a
H(C
2
H
3
O
2
)
H(C
4
H
7
O
2
)
H(CHO
2
)
1.74 E-5
1.48 E-5
1.78 E-4 heptanoic acid H(C
7
H
13
O
2
) 1.29 E-5 hexanoic acid hydrocyanic acid HCN hydrofluoric acid HF lactic acid nitrous acid propanoic acid
H(C
6
H
11
O
2
)
H(C
3
H
5
O
3
)
HNO
2
H(C
3
H
5
O
2
)
1.41 E-5
6.17 E-10
4.84
9.21
6.31 E-4 3.2
8.32 E-4 3.08
5.62 E-4 3.25
1.38 E-5 4.86
H(C5H
3
N
4
O
3
) 1.29 E-4 3.89 uric acid pK a
4.76
4.83
3.75
4.89
BASE alanine
FORMULA
C
3
H
5
O
2
NH
2
K b
7.41 E-5 ammonia (water) NH
3
(NH
4
OH) 1.78 E-5 dimethylamine ethylamine glycine hydrazine methylamine trimethylamine
(CH
C
C
N
2
2
2
H
H
H
CH
3
(CH
3
5
3
4
NH
3
)
NH
O
)
2
3
NH
2
2
NH
N
2
2
4.79 E-4
5.01 E-4
6.03 E-5
1.26 E-6
4.27 E-4
6.31 E-5 pK b
4.13
4.75
3.32
3.3
4.22
5.9
3.37
4.2