WorksheetsAcids and Bases Review
Total questions: 26
Worksheet time: 24mins
Name
Class
Date
1.
A hydrogen ion, H+, is the same as a(n):
a)
neutron
b)
electron
c)
proton
d)
hydroxide ion
2.
OH- is called the:
a)
hydrate ion
b)
hydrogen ion
c)
hydronium ion
d)
hydroxide ion
3.
Which food is the most acidic?
a)
bananas
b)
lemon juice
c)
orange juice
4.
If an acid is combined with a base of equal strength, the result will most likely be
a)
a neutral solution.
b)
a stronger acid.
c)
impossible to tell without testing the pH.
d)
a stronger base
5.
Litmus paper can be used to determine the _______ of a substance.
a)
relative volume
b)
temperature
c)
relative pH
d)
chemical formula
6.
Carrie's teacher hands out test tubes filled with different chemicals and tells the students to identify their liquid as an acid, base, or neutral chemical. Carrie'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 Carrie have?
What type of chemical does Carrie have?
a)
Carrie has a neutral chemical.
b)
Carrie has an acidic chemical.
c)
Carrie has a basic chemical.
d)
The type of chemical Carrie has cannot be determined.
7.
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
8.
Tastes bitter.
a)
Acids
b)
Bases
c)
Salts
d)
All
9.
What methods can you use to measure the pH of a solution?
a)
Observing color or clarity
b)
Measuring mass or volume
c)
Measuring density or electrical conductivity
d)
Using acid base-indicators or pH meters
10.
Which of these pH values would indicate that a solution is a weak base?
a)
4
b)
5.6
c)
8
d)
13
11.
When dissolved in water, acids produce:
a)
bases
b)
salts
c)
hydrogen ions
d)
hydroxide ions
12.
Any substance that produces hydroxide ions in water is known as _____________.
a)
an acid
b)
a hydrogen ion
c)
a base
d)
a neutral
13.
Acid + base --> ?
a)
salt + hydrogen gas + water
b)
salt + carbon dioxide + water
c)
salt + water
d)
salt only
14.
When comparing solutions with pH's of 6 and 3. The solution with a pH of 3 has
a)
1000x's more H+ ions
b)
1000's less H+ ions
c)
30x's more H+ ions
d)
3 times less H+ ions
15.
What pH would have 10,000x's less OH- ions than a pH of 8
a)
4
b)
12
c)
14
d)
5
16.
Which of the following pH's would represent a strong base
a)
1
b)
13
c)
9
d)
5
17.
As something become more acidic it has a
a)
lower concentration of OH- ions
b)
higher concentration of H+ ions
c)
higher concentration of H3O+ ions
d)
All of these are true
18.
Hydronium ion concentration increases as the pH
a)
decreases
b)
increases
19.
These tend to react with metals
a)
Acids
b)
Bases
c)
Both
d)
Neither
20.
These have ions and thus conduct an electric current.
a)
Acids
b)
Bases
c)
Neither
d)
Both
21.
Which compound is the conjugate acid? (Hint: Determine the base)
PO43- + HNO3 ==> NO3- + HPO42-
a)
PO43-
b)
HNO3
c)
NO3-
d)
HPO42-
22.
NH3 + H2O --> NH4+ + OH-
What is the conjugate acid according the Bronsted-Lowry model?
What is the conjugate acid according the Bronsted-Lowry model?
a)
NH3
b)
H2O
c)
NH4+
d)
OH-
23.
NH3 + H2O --> NH4+ + OH-
According to the Bronsted-Lowry model, what is H2O in this reaction?
According to the Bronsted-Lowry model, what is H2O in this reaction?
a)
acid
b)
base
c)
conjugate acid
d)
conjugate base
24.
OH- + HPO4-2 --> H2O + PO4-3
What is the conjugate base?
a)
OH-
b)
HPO4-2
c)
H2O
d)
PO4-3
25.
OH- + HPO4-2 --> H2O + PO4-3
What is the acid?
a)
OH-
b)
HPO4-2
c)
H2O
d)
PO4-3
26.
OH- + HPO4-2 --> H2O + PO4-3
What is the conjugate acid?
a)
OH-
b)
HPO4-2
c)
H2O
d)
PO4-3
100 %
