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Solutions, Acids & Bases Exam Review

Total questions: 56

Worksheet time: 3570secs

Name
Class
Date
1.

An acid has a pH

a)

higher than 7

b)

lower than 7

c)

7

d)

greater than 14

2.

the H in pH stands for

a)

hood

b)

happy

c)

hydrogen

d)

help

3.

a base has a pH of

a)

lower than 7

b)

higher than 7

c)

7

d)

it only has a pOH

4.

acids taste

a)

bitter

b)

sour

c)

furry

5.
The pH of a solution is tested, and it is found to be a basic solution. Of the following choices, what could the pH have been?
a)
3
b)
9
c)
7
d)
5
6.
Human blood has a pH between 7.35 and 7.45. Which of the following best describes human blood?
a)
strongly acidic
b)
slightly acidic
c)
strongly basic
d)
slightly basic
7.
hydrochloric acid
a)
HClO3
b)
HClO2
c)
HClO
d)
HCl
8.
nitrous acid
a)
H2NO3
b)
HNO3
c)
HNO2
d)
H2NO2
9.
HF
a)
flouric acid
b)
hydrofluoric acid
c)
fluorate acid
d)
hydrogen fluoridic acid
10.
H2SO3
a)
sulfuric acid
b)
hydrosulfuric acid
c)
sulfurous acid
d)
persulfuric acid
11.

What is the pH of a solution that has a [H+] of 2.5 x 10-5?

a)

4.60

b)

5.0

c)

2.5

d)

7

12.

What is the [H+] if the pH is 4.0?

a)

1.0 x 10-10 M

b)

1.0 x 10-4 M

c)

1.0 x 10-14 M

d)

1.0 x 10-7 M

13.

What is the pOH of a solution where the [OH-] is 7.3 x 10-2 M?

a)

-1.14

b)

2.0

c)

1.14

d)

7.3

14.
What is the pOH of a solution that has a pH of 2?
a)
10
b)
12
c)
14
d)
1
15.

What is the pH of a solution where the [H+] is 1.0 x 10-11?

a)

11.00

b)

13.00

c)

14.00

d)

1.00

16.
What is the formula for nitric acid?
a)
HNO2
b)
HNO3
c)
HNO4
d)
H2NO3
17.

Mrs. Roach hands out test tubes filled with different chemicals and tells the students to identify their liquid as an acid, base, or neutral chemical. Brianna's test tube contains a clear chemical. She adds phenolpthalein to her test tube and gently moves the tube from side to side. A few moments later, the chemical in the test tube turns bright pink.

What type of chemical does Brianna have?

a)

Brianna has a neutral chemical.

b)

Brianna has an acidic chemical.

c)

Brianna has a basic chemical.

d)

The type of chemical Brianna has cannot be determined.

18.
Many cleaning solutions are bases. Which of the following is a property of most bases?
a)
feels slippery
b)
white color
c)
can only be liquid
d)
tastes sour
19.
Tastes bitter.
a)
Acids
b)
Bases
c)
Salts
d)
All
20.
When dissolved in water, acids produce:
a)
bases
b)
salts
c)
hydrogen ions
d)
hydroxide ions
21.
Which type of ion does a base produce when it is dissolved in water?
a)
oxide
b)
oxygen
c)
hydrogen
d)
hydroxide
22.
A hydrogen ion, H+, is the same as a(n):
a)
neutron
b)
electron
c)
proton
d)
hydroxide ion
23.
A compound that changes color when it is in contact with an acid or base is called______________
a)
Acid
b)
Base 
c)
Neutral
d)
Indicator
24.
The pH scale measures...
a)
...the strength of an acid.
b)
...the strength of hydrogen ions.
c)
...the concentration of hydrogen ions.
d)
...the concentration of an acid
25.
Acid + base --> ?
a)
salt + hydrogen gas + water
b)
salt + carbon dioxide + water
c)
salt + water
d)
salt only
26.
The esophagus is the tube that connects the mouth to the stomach. Heartburn occurs when some of the stomach juices flow backwards up the esophagus. To help relieve heartburn, a person should take medicine that is
a)
neutral
b)
basic
c)

acidic or basic.
d)
acidic
27.

A substance is found to have the following characteristics:


Very bitter taste

Feels slippery to the touch

Produces OH- ions when dissolved in water


In what category would the substance be classified?

a)

acid

b)

base

c)

enzyme

d)

fatty acid

28.
What are properties of acids?
a)
Bitter, slippery, ph above 7
b)
Sour, Conducts electricity, ph below 7
c)
Sour, reacts with metals, ph above 7
d)
Bitter, ph of 7, does not react with metals
29.
Which of the following statements is correct?
a)
Blue litmus paper turns red when placed in a base.
b)
Red litmus paper turns blue when placed in a base.
c)
Blue litmus paper stays blue when placed in an acid.
d)
Red litmus paper stays red when placed in a base.
30.

Which compound is the conjugate acid? (Hint: Determine the base)

PO43- + HNO3 ==> NO3- + HPO42-

a)

PO43-

b)

HNO3

c)

NO3-

d)

HPO42-

31.

Which compound is the conjugate base?

HCO3- + HCl ==> H2CO3 + Cl-

a)

HCO3-

b)

HCl

c)

H2CO3

d)

Cl-

32.

NH3 + H2O --> NH4+ + OH-

What is H2O in this reaction?

a)

acid

b)

base

c)

conjugate acid

d)

conjugate base

33.

In the reaction below, H2O is a(n):

H2SO3 + H2O --> H3O+ + HSO3-

a)

base

b)

acid

c)

conjugate acid

d)

conjugate base

34.

CO32- +H2O → HCO3-+OH-

Which compound is the conjugate base?

a)

CO32-

b)

H2O

c)

HCO3-

d)

OH-

35.
HSO4- + H2O → H3O++ SO42-
Identify the Acid in the above reaction.
a)
HSO4-
b)
H2O
c)
H3O+
d)
SO42-
36.

In the reaction: HCl + NH3 ----> NH4+ + Cl-, HCl is acting as a(n)

a)

Bronsted-Lowry base Conjugate base

b)

Bronsted-Lowry base

c)

Bronsted-Lowry acid

d)

Bronsted-Lowry conjugate acid

37.

What is the formula for phosphoric acid?

a)

HPO4

b)

HPO3

c)

H3PO4

d)

HPO2

e)

H2PO3

38.
You notice your car battery has leaked acid on the ground.   What should you do?  
a)
Pour water on the spill.
b)
Call the police.
c)
Use baking soda on the spill to neutralize it.  
d)
Use vinegar on the spill to lower the pH.
39.
According to Bronsted-Lowry, a base is _____.
a)
a proton (hydrogen ion) acceptor
b)
a proton (hydrogen ion) donor
c)
pink
d)
one of the four corners on a baseball diamond
40.
LiOH + HCl --> ???
What are the products in this neutralization reaction?
a)
HCl and H2O
b)
LiCl and H2O
c)
LiH and ClO
d)
H+ and OH-
41.
What is the volume in this burette?
a)
24.1mL
b)
24.3mL
c)
24.2L
d)
24.2mL
42.

What is the endpoint of a titration

a)

Where the amount (in moles) of acid and base are equal as shown by a color change

b)

Where there is no base

c)

When the volume of base in the buret is used up

d)

When there is no acid

43.
I have 25mL of 1M HCl which neutralises 20mL of NaOH. What is the concentration of the NaOH?
a)
0.8 M
b)
1 M
c)
1.25 M
44.

The following neutralization reaction occurs in the lab:

HCl + KOH --> H2O + KCl

If a student uses 25.0 mL of a 0.5M solution of KOH, what is the molarity of the acid if 15.0mL of acid neutralized?

a)

0.8M

b)

1.2M

c)

12.5M

45.
What are the products of the neutralization shown below?
Ca(OH)2  +  H2CO3  -->  
a)
H2O  +  Ca2CO3
b)
CaO +  CO3
c)
H2O  +  CaCO3
46.
If it takes 50 mL of 0.5 M Ca(OH)2 to neutralize 125 mL of sulfuric acid, what is the concentration of the acid?
a)
0.2 M
b)
5 M
c)
0.5 M
47.

What is the long graduated piece of equipment used in a titration called?

a)

Pipette

b)

Tube

c)

Buret

d)

Measuring Cylinder

48.
What is a substance that is dissolved in another substance? 
a)
solution
b)
solute
c)
solvent
d)
compound
49.
What is a solvent?
a)
The substance that does the dissolving in a solution.
b)
The substance that is being dissolved in a solution.
c)
The mixing of different substances.
d)
The process in which neutral molecules lose or gain electrons
50.
What precipitate forms when you mix lead (II) nitrate with sodium chloride?
a)
sodium nitrate 
b)
lead (II) chloride 
c)
sodium lead
d)
chloride nitrate 
51.
Which is the correct net ionic equation for the reaction of AgNO3 and CaCl2?
a)
Ca2+(aq) +  2Cl- (aq) → CaCl(s)
b)
Ag+(aq)  +  Cl- (aq) → AgCl(s)
c)
Ag +  Cl  →  AgCl
d)
Ag+  +  Ca2+   →Ag2Ca (s)
52.

Which of the following does NOT form a precipitate?

a)

Pb(NO3)2(aq) + 2KI(aq) →

b)

Sr(NO3)2 (aq) + K2SO4(aq) →

c)

AgNO3(aq) + Na2S(aq) →

d)

Pb(NO3)2(aq) + AgNO3(aq) →

53.
What are the spectator ions in the reaction of sodium chloride with silver nitrate?
a)
silver and nitrate
b)
sodium and chloride
c)
sodium and nitrate
d)
silver and chloride
54.
In this equation,
CuCl2 + NaOH  → Cu(OH)2 + NaCl
Which product is insoluble?
a)
copper(II) hydroxide
b)
sodium chloride
c)
sodium hydroxide
d)
copper(II) chloride
55.
What are the spectator ions in this reaction?
CuCl2(aq) + NaOH(aq) → Cu(OH)2(s) + NaCl(aq)
 
a)
Cu2+ and OH1-
b)
Na2+ and Cl2-
c)
Na1+ and Cl1-
d)
Na1+ and OH1-
56.

What is a Net Ionic Equation?

a)

a balanced chemical equation in which all the reactants and products are given by their chemical formulae.

b)

a chemical equation that shows all soluble species broken into their respective ions.

c)

a chemical equation showing only the species which are actively involved in the reaction.

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