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WorksheetsAcids & Bases Review
Total questions: 32
Worksheet time: 2hrs 55mins
Name
Class
Date
1.
Which range of numbers represent basic solution?
a)
0-6
b)
7
c)
8-14
d)
3-9
2.
Which range of numbers represent an acidic solution?
a)
0-6
b)
7
c)
8-14
d)
5-9
3.
Which of the following represents the chemical formula for hydronium?
a)
H2O
b)
H+
c)
H3O+
d)
OH-
4.
A ( ) is a substance that either contains hydroxide ions (OH-) or reacts with water to form hydroxide ions.
a)
acid
b)
base
c)
hydronium ion
d)
water
5.
Which is a basic compound?
a)
antacid
b)
drain cleaner
c)
bleach
d)
all of the above
6.
When a solution of an acid reacts with a solution of a base, hydronium ions react with hydroxide ions to form
a)
salt
b)
a stronger acid
c)
a weaker base
d)
water
7.
The pH of a substance is a measure of its
a)
Boiling point
b)
Food value
c)
Ability to mix with water
d)
Hydronium ion concentration
8.
Measure of how acidic or basic something is, based on the concentration of hydrogen ions in the solution.
a)
aH
b)
bH
c)
pH
d)
pOH
9.
What are properties of acids?
a)
Bitter, slippery, ph above 7
b)
Sour, reacts with metals, ph below 7
c)
Sour, reacts with metals, ph above 7
d)
Bitter, ph of 7, does not react with metals
10.
What are properties of a base?
a)
Slippery, bitter, does not react with metals, pH above 7.
b)
Slippery, bitter, reacts with metals, pH below 7.
c)
Sour, reacts with metals, pH below 7
d)
Sour, reacts with metals, pH above 7.
11.
In the equation
NH3 + H2O --> NH4 + OH- , Which is the conjugate acid if NH3 is a base?
NH3 + H2O --> NH4 + OH- , Which is the conjugate acid if NH3 is a base?
a)
OH-
b)
NH4+
12.
Arrhenius says an acid is a(n) __
a)
H+ producer
b)
Hydrogen donor
c)
electron-pair acceptor
13.
Things with a neutral pH have a pH of
a)
1
b)
3
c)
7
d)
14
14.
Water is neutral because the number of hydrogen and hydroxide ions is _________.
a)
the same
b)
different
15.
Which of the following substances would have the greatest concentration of H+ ions?
a)
Ammonia with
pH 13
pH 13
b)
Water with
pH 7
pH 7
c)
Milk with
pH 5
pH 5
d)
Lemon juice with
pH 2
pH 2
16.
What is the pOH of a solution that has a pH of 2?
a)
10
b)
12
c)
14
d)
1
17.
The lower the pH, the greater the concentration of :
a)
OH-
b)
H+
18.
What is the conjugate acid in the following equation?
a)
PO43-
b)
HNO3
c)
NO3-
d)
HPO42-
19.
What is the conjugate base in the following reaction?
a)
HCO3-
b)
HCl
c)
H2CO3
d)
Cl-
20.
A substance dissociates in water, but not fully. The solution has a concentration of H+ ions.
a)
Weak acid
b)
Weak base
c)
Strong acid
d)
Strong base
21.
Acids produce _________ ions when they break down or dissocciate.
a)
Hydroxide (OH-)
b)
Water
c)
Chlorine (Cl-)
d)
Hydrogen (H+)
22.
Bases release ____________ ions when they break down or dissociate.
a)
Hydrogen (H+)
b)
Hydroxide (OH-)
c)
Chlorine (Cl-)
d)
no
23.
Bases are substances that ...
a)
accept hydrogen atoms
b)
reject hydrogen atoms
24.
A solution with a pH of 8.6 would be...
a)
Acid
b)
Base
c)
Neutral
d)
Acid and Base
25.
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
26.
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
27.
What is the [OH-] if the [H+] is 1.0 x 10-3M?
a)
1.0 x 10-3 M
b)
6.02 x 10-23 M
c)
1.0 x 10-14 M
d)
1.0 x 10-11 M
28.
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
29.
What is the pOH of a solution that has a pH of 2?
a)
10
b)
12
c)
14
d)
1
30.
What is the [OH-] if the pH is 4.9?
a)
7.94 x 10-10 M
b)
1.0 x 10-4 M
c)
7.94 x 10-14 M
d)
4.9 x 10-10 M
31.
The lower the pH, the greater the concentration of :
a)
OH-
b)
H+
32.
What is the pH of a solution where the [H+] is 1.0 x 10-11?
a)
11
b)
13
c)
14
d)
1
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