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Acids and Bases Quiz

Total questions: 20

Worksheet time: 7mins

Name
Class
Date
1.
Which of the following word pairs correctly completes the sentence below?
_______ are corrosive substances characterized as having a strong smell, a sour taste, and a _______.
a)
Acids; pH less than 7
b)
Acids; pH greater than 7
c)
Bases; pH greater than 7
d)
Bases; pH less than 7
2.
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
3.
Holly has an unknown substance in a beaker. She wants to determine the relative pH of the unknown substance. She places a piece of blue litmus paper into the substance, and the litmus paper stays blue.
The substance in the beaker
a)
is a base.
b)
has a neutral pH.
c)
is an acid.
d)
does not have a pH.
4.
 Which of the following is an acid?
a)
shampoo
b)
baking soda
c)
orange juice
d)
water
5.
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
6.
When dissolved in water, acids produce:
a)
bases
b)
salts
c)
hydrogen ions
d)
hydroxide ions
7.
A pH scale is...
a)
A  corrosive substance that says a substance is an acid.
b)
An indicator that tells if a substance is an acid or base. 
c)
A blue litmus paper.
d)
A red litmus paper.
8.
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
9.

The pH of a substance is defined as:

a)

log[H+]

b)

–log[H–]

c)

-log[H+]

d)

–log[OH–]

10.

A substance that can act as either an acid or a base is called:

a)

a buffered substance

b)

amphoteric

c)

a conjugate acid-base pair.

d)

a neutral substance.

11.
What are Bases?
a)
Something that is played in baseball
b)
a substance capable of reacting with an acid to form a salt and water, or (more broadly) of accepting or neutralizing hydrogen ions.
c)
a solution that has an access of OH- ions
d)
the opposite of an acid
12.

Based purely upon formula, which of the following would likely be an acid?

a)

NaOH

b)

HCl

c)

H2SO4

d)

Ca(OH)2

e)

HC2H3O2

13.

What is the proper name of: HF

a)

Hydrogen Fluoride

b)

Hydrofluoric acid

c)

Fluoric acid

d)

Fluorous acid

14.

What is the proper name for: Al(OH)3

a)

Aluminum hyroxide

b)

Aluminum hydroxic

c)

Aluminum hydroxous

15.

Which species behave as Brønsted–Lowry bases in the following reaction?

H2SO4 + HNO3 H2NO3+ + HSO4-

a)

NaOH and KOH

b)

HNO3 and NH3

c)

H2SO4 and HSO4-

d)

NO3- and HSO4-

16.

What is the molarity of a solution that contains 0.07 moles of a solute dissolved in a 3 liter solution?

a)

0.08

b)

0.44

c)

.21

d)

.02

17.

Calculate the molality of 20.0 moles of NaCl dissolved in 890. grams of H2O.

a)

13.5

b)

22.4

c)

17.8

d)

20.9

18.

How can you increase the rate of dissolution?

a)

Stirring

b)

Increase surface area

c)

Increase temperature

d)

Increase volume

19.

What is the pH of a 0.02 M solution of the strong acid HCl?

a)

12.3

b)

1.7

c)

2.3

d)

1.2

20.

What is the pH of a 0.04 M solution of the strong base sodium hydroxide?

a)

8.50

b)

1.40

c)

14.0

d)

12.6