Name: 
 

Chapter 14 Part I Self Quiz


Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
 

 1. 
According to the Brønsted-Lowry definition, an acid
a.
increases the H3O+ concentration in an aqueous solution.
b.
increases the OH- concentration in an aqueous solution.
c.
is a proton acceptor.
d.
is a proton donor.
e.
is an electron pair-acceptor.
 

 2. 
According to the Brønsted-Lowry definition, a base
a.
increases the H3O+ concentration in an aqueous solution.
b.
increases the OH- concentration in an aqueous solution.
c.
is a proton acceptor.
d.
is a proton donor.
e.
is an electron-pair donor.
 

 3. 
In the following reaction

HF(aq) + HPO42-(aq) double sided arrow F-(aq) + H2PO4-(aq)
a.
HF is an acid and F- is its conjugate base.
b.
HF is an acid and HPO42- is its conjugate base.
c.
HPO42- is an acid and H2PO4- is its conjugate base.
d.
H2PO4- is an acid and F- is its conjugate base.
e.
HPO42- is an acid and HF is its conjugate base.
 

 4. 
Which acid is a potentially dangerous component of rhubarb leaves?
a.
oxalic
b.
arsenous
c.
arsenic
d.
nitric
e.
selenic
 

 5. 
Which of the following molecules or ions is amphiprotic in water?
a.
NH4+
b.
HF
c.
CH3CO2H
d.
CN-
e.
HCO3-
 

 6. 
What is the pH of 0.28 M HNO3(aq) at 25 °C? (Kw = 1.0 × 10-14)
a.
-0.55
b.
0.28
c.
0.55
d.
1.27
e.
13.45
 

 7. 
What is the H3O+ concentration of an aqueous solution with a pH of 12.17?
a.
6.8 × 10-13 M
b.
1.9 × 10-9 M
c.
5.2 × 10-6 M
d.
1.5 × 10-2 M
e.
1.1 M
 

 8. 
A solution is made by diluting 0.50 mol NaClO to a volume of 3.0 L with water. What is the pH of the solution? (Kb of ClO- = 2.9 × 10-7)
a.
3.66
b.
7.46
c.
10.34
d.
10.58
e.
13.22
 

 9. 
Which of the following chemical equations corresponds to Ka3 for phosphoric acid?
a.
HPO42-(aq) + H2O(l) double sided arrow PO43-(aq) + H3O+(aq)
b.
PO43-(aq) + H2O(l) double sided arrow HPO42-(aq) + OH-(aq)
c.
H3PO4(aq) + H2O(l) double sided arrow H2PO4-(aq) + H3O+(aq)
d.
H3PO4(aq) + 3 H2O(l) double sided arrow PO43-(aq) + 3 H3O+(aq)
e.
H2PO4-(aq) + H2O(l) double sided arrow HPO42-(aq) + H3O+(aq)
 

 10. 
All of the following compounds are acids containing chlorine. Which compound is the weakest acid?
a.
HCl
b.
HClO
c.
HClO2
d.
HClO3
e.
HClO4
 



 
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