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N,P,Calc - Acids & Bases Practice

Total questions: 40

Worksheet time: 49mins

Name
Class
Date
1.

For a solution, pH + pOH =

a)

7

b)

14

c)

1.0 x 10-14

d)

-log (1.0 x 10 -14)

2.

If the pH of a solution is 4.0, what is the pOH?

a)

4.0

b)

10.0

c)

1.0 x 10 -4

d)

cannot be determined from the information

3.

The pH of a solution is 8.43. What is the [H3O+]concentration?

a)

3.7 x 10 -9

b)

1.0 x 10-8.43

c)

2.7 x 10-6

d)

1.0 x 10-14

4.

If the [H3O+] of a solution is 1 x 10-3 M, the pH is

a)

11

b)

-3

c)

3

d)

1

5.

If the pH of a solution is 8 the [H3O+] is

a)

1.0 x 106 M

b)

8.0 x 101 M

c)

1.0 x 108 M

d)

1.0 x 10-8 M

6.

If the [OH-] of a solution is 2.7 x 10-4 M, the pOH of the solution is

a)

10.44

b)

1.00

c)

3.57

d)

-4.43

7.

If the [H3O+] of a solution is 6.8 x 10-8 M, the pH is

a)

7.17

b)

3.2 x 10-5

c)

7.2

d)

7.62

8.

If the [H3O+] of a solution is 9.3 x 10-3 M, the pOH of the solution will be

a)

2.03

b)

1.02

c)

11.97

d)

12.98

9.

If a solution has a pOH of 3.7 the [OH-] of the solution is

a)

5.0 x 10-11

b)

2.0 x 10-4

c)

10.3

d)

14

10.

Oranges have a [H3O+] of 1.7 x 10-2 M. Their pOH is

a)

1.77

b)

12.23

c)

10.91

d)

3.09

11.

Ammonia has a pOH of 2. Ammonia is a(n) __________.

a)

acid

b)

base

c)

neutral

d)

metal

12.

Find the pH of a solution with [OH-] = 8.41 x 10-4.

a)

3.08

b)

10.92

c)

9.88

d)

11.23

13.

What is the pOH of a solution with [H+] = 1.24 x 10 -2?

a)

1.91

b)

1.61

c)

12.09

d)

12.39

14.

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

a)

4.60

b)

2.5

c)

5.0

d)

7

15.

What is the [OH-] if the [H+] is 1.0 x 10-3M?

a)

1.0 x 10-3 M

b)

1.0 x 10-14 M

c)

6.02 x 10-23 M

d)

1.0 x 10-11 M

16.
Select the formula for the following acid: hydroiodic acid
a)
HI
b)
HIO4
c)
HIO3
d)
H2I
17.
Select the formula for the following acid: Carbonic Acid
a)
H2CO3
b)
HCO3
c)
H4C
18.
Select the name for the following acid: H2SO4
a)
Sulfuric acid
b)
Sulfurous acid
c)
Hydrosulfuric acid
19.
Select the formula for the following acid: nitrous acid
a)
HNO2
b)
HNO3
c)
H3N
20.
Select the name for the following acid: HC2H3O2
a)
Acetic acid
b)
Ethanoic acid
c)
Acenous acid
d)
Hydroacetic acid
21.
Select the formula for the following acid: chloric acid
a)
HClO3
b)
HCl
c)
HClO4
22.
Vinegar is a base.
a)
True
b)
False
23.
Which of the following is an acid?
a)
Ammonia
b)
Drain cleaner
c)
Shampoo
d)
Orange
24.
What does a pH scale do?
a)
Tells you if a substance is an acid.
b)
Tells you if a substance is a base.
c)
Measures the strength or weakness of an acid or base.
d)
All of these are true.
25.
What is the pH of distilled water?
a)
1
b)
4
c)
7
d)
11
26.
When found in food, bases are _______.
a)
Sour
b)
Bitter
c)
Salty
d)
Soggy
27.
Drain cleaner has a pH of 13. What is drain cleaner?
a)
An acid.
b)
A strong base.
c)
Neutral.
d)
A weak base.
28.
The pH scale is a range from:
a)
1-7
b)
0-14
c)
1-14
d)
1-20
29.

Turns indicators different colors

a)

acid

b)

base

c)

both an acid and a base

30.

Compound starts with an "H"

a)

acid

b)

base

c)

both an acid and a base

31.

Conducts electricity (has electrolytes)

a)

acid

b)

base

c)

both an acid and a base

32.

Feels slippery

a)

acid

b)

base

c)

an acid and a base

33.
Which one of the following is an example of a base?
a)
orange juice
b)
dish soap
c)
vinegar
d)
lemons
34.
phosphorous acid
a)
H3PO4
b)
H2PO4
c)
H3P
d)
H3PO3
35.
Mg(OH)2
a)
magnesium hydroxide acid
b)
hydromagnesium acid
c)
magnesium oxygen hydride
d)
magnesium hydroxide
36.
Barium hydroxide
a)
BaOH
b)
Ba2OH
c)
Ba(OH)2
37.
Nitrous Acid
a)
HNO2
b)
H2NO2
c)
HNO3
38.

Oranges have a [H3O+] of 1.7 x 10-2 M. Their pOH is

a)

1.77

b)

12.23

c)

10.91

d)

3.09

39.

If a solution has a very high pH, the hydroxide concentration is _______.

a)

very high

b)

very low

c)

zero

40.

Which of the following is most acidic:

a)

pH of 4

b)

[H+] = 1.0 x 10 -2

c)

[H+] = 1.0 x 10 -13

d)

[OH-] = 1.0 x 10 - 6

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