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WorksheetsAcids and Bases- Chem Honors
Total questions: 24
Worksheet time: 21mins
If the substance is neutral, what would the pH be?
3
5
7
9
11
Which is the stronger acid?
pH 1
pH 4
pH 8
pH 13
sulfurous acid
HSO3
H2SO3
H2SO4
H3SO4
Ca(OH)2
Which of the following is a base?
baking soda in water
orange juice
vinegar
lemonade
The strongest bases have pH values close to
0
14
7
5
When you place blue litmus paper into an unknown clear solution, the blue litmus paper turns red.
Which of the following represents the most logical conclusion?
The substance has a pH value of "2".
The substance is a base.
The substance has a pH value of "7".
The substance is acidic.
What range of values on the pH scale represent solutions with a higher ratio of hydroxide (OH-) ions?
below 7
7
above 7
0-14
According to the Arrhenius theory, an acid is a substance that contains ... and ionises in an aqueous solution to give ...
hydroxide, hydroxide ions
hydrogen, hydrogen ions
hydrogen, hydroxide ions
hydroxide, hydrogen ions
According to the Brønsted-Lowry theory, an acid is a substance that exhibits a tendency to ...
donate an electron
accept an electron
donate a proton
accept a proton
According to the Brønsted-Lowry theory, a base is a substance that exhibits a tendency to ...
donate an electron
accept a proton
donate a proton
accept an electron
What is the conjugate base in the following reaction?
HCO3-
HCl
H2CO3
Cl-
Which of the following will conduct electricity? Select all that apply
Acidic solutions
Basic solutions
Ionic solutions
Neutral covalent solutions
What happens to acids when they react to metals?
Produce Oxygen gas
Helium Gas
Hydrogen gas
Acids which dissociate almost completely in aqueous solutions are known as:
Dilute acids
Strong acids
Weak acids
Concentrated acids
A substance that does not dissociate completely. Ranges from 4-7 on the pH scale.
Strong Acid
Strong Base
Weak Acid
Weak Base
When comparing a strong and weak acid of the same concentration, the strong acid will have...(choose 2 answers)
A higher conductivity
A lower conductivity
A faster rate of reaction
A slower rate of reaction
Match each pH with the correct category:
strong acid
1.0
strong base
13.5
weak acid
5.5
weak base
8.5
neutral
7.0
What is the conjugate acid of HCO31-?
Hint: charge of -1 so lost a proton (+1) so needs to get a proton back
CO3
H2CO3
CO32-
H2CO32-
