Question 1

Which of these is not a base?

Accepted Answer

A)  HCOOH 
B)  NaHCO3 
C)  NaOH 
D)  CaCO3 
E)  Mg(OH)2 
A)  HCOOH 
B)  NaHCO3 
C)  NaOH 
D)  CaCO3 
E)  Mg(OH)2 A

Question 2

Which of these are properties of acids?
I. They are sour in taste.
II. They turn red litmus paper blue.
III. They dissolve many metals.
IV. They feel slippery

Accepted Answer

A)  I only 
B)  III only 
C)  I and II 
D)  I and III 
E)  II, III, and IV 
A)  I only 
B)  III only 
C)  I and II 
D)  I and III 
E)  II, III, and IV D

Question 3

Which of these statements regarding pH is incorrect ?

Accepted Answer

A)  pH is based on the [H3O+] in solution. 
B)  If [H3O+] = 1.0 × 10 − 4 M, the solution is acidic. 
C)  If pH = 7.0, the solution is neutral. 
D)  If pH 
E)  Pure water has [H3O+] = 1.0 × 10-7 M. 
A)  pH is based on the [H3O+] in solution. 
B)  If [H3O+] = 1.0 × 10 − 4 M, the solution is acidic. 
C)  If pH = 7.0, the solution is neutral. 
D)  If pH 
E)  Pure water has [H3O+] = 1.0 × 10-7 M. D

Question 4

Which of these acids is not found in wines?

Accepted Answer

A)  Lactic acid 
B)  Citric acid 
C)  Tartaric acid 
D)  Acetic acid 
E)  Salicylic acid 
A)  Lactic acid 
B)  Citric acid 
C)  Tartaric acid 
D)  Acetic acid 
E)  Salicylic acid

Question 5

Rain is naturally acidic as a result of _____ gas reacting with the water.

Accepted Answer

A)  SO2 
B)  CO2 
C)  NO2 
D)  Cl2 
E)  N2 
A)  SO2 
B)  CO2 
C)  NO2 
D)  Cl2 
E)  N2

Question 6

_____ is responsible for the disagreeably sour taste in vomit.

Accepted Answer

A)  Citric acid 
B)  Lactic acid 
C)  Hydrochloric acid 
D)  Phosphoric acid 
E)  Carbonic acid 
A)  Citric acid 
B)  Lactic acid 
C)  Hydrochloric acid 
D)  Phosphoric acid 
E)  Carbonic acid

Question 7

Which of these statements about acid rain is correct?

Accepted Answer

A)  Acid rain has destroyed all marine life in entire lakes. 
B)  Acid rain slows the rate of tree growth. 
C)  Acid rain accelerates the rusting process. 
D)  Acid rain can effectively remove nutrients from soil. 
E)  All of these statements are true. 
A)  Acid rain has destroyed all marine life in entire lakes. 
B)  Acid rain slows the rate of tree growth. 
C)  Acid rain accelerates the rusting process. 
D)  Acid rain can effectively remove nutrients from soil. 
E)  All of these statements are true.

Question 8

Which of these is the active ingredient in aspirin?

Accepted Answer

A)  Salicylic acid 
B)  Acetylsalicylic acid 
C)  Acetic acid 
D)  Lactic acid 
E)  Benzoic acid 
A)  Salicylic acid 
B)  Acetylsalicylic acid 
C)  Acetic acid 
D)  Lactic acid 
E)  Benzoic acid

Question 9

Which of the following laboratory acids is used in the cleaning of metals?

Accepted Answer

A)  Sulfuric acid 
B)  Nitric acid 
C)  Hydrochloric acid 
D)  Acetic acid 
E)  Phosphoric acid 
A)  Sulfuric acid 
B)  Nitric acid 
C)  Hydrochloric acid 
D)  Acetic acid 
E)  Phosphoric acid

Question 10

Which of these pairs represents the products of the dissociation of the following compound in water?
​
Mg(OH)2 = _____ + _____

Accepted Answer

A)  MgOH, H2 
B)  OH − , MgOH+ 
C)  Mg2+, 2 OH −  
D)  Mg+, 2 OH −  
E)  OH2 − , Mg+ 
A)  MgOH, H2 
B)  OH − , MgOH+ 
C)  Mg2+, 2 OH −  
D)  Mg+, 2 OH −  
E)  OH2 − , Mg+

Question 11

Which of these statements concerning pH is incorrect ?

Accepted Answer

A)  pH is based on the [H3O+] in solution. 
B)  If [H3O+] = 1.0 × 10 − 13, the solution is basic. 
C)  pH = 3 is ten times more acidic than pH = 2. 
D)  If pH > 7, the solution is basic. 
E)  Pure water has [H3O+] = 1.0 × 10 − 7. 
A)  pH is based on the [H3O+] in solution. 
B)  If [H3O+] = 1.0 × 10 − 13, the solution is basic. 
C)  pH = 3 is ten times more acidic than pH = 2. 
D)  If pH > 7, the solution is basic. 
E)  Pure water has [H3O+] = 1.0 × 10 − 7.

Question 12

Which of these is the best definition of a Bronsted-Lowry acid?

Accepted Answer

A)  Any substance that donates H+ ions in solution 
B)  Any substance that produces OH −  ions in solution 
C)  Any substance that accepts a lone pair of electrons 
D)  Any substance that neutralizes a base in solution 
E)  Any substance that accepts H+ ions in solution 
A)  Any substance that donates H+ ions in solution 
B)  Any substance that produces OH −  ions in solution 
C)  Any substance that accepts a lone pair of electrons 
D)  Any substance that neutralizes a base in solution 
E)  Any substance that accepts H+ ions in solution

Question 13

Compared with a solution that has a pH of 2.00, a solution that has a pH of 4.00:

Accepted Answer

A)  contains twice as many hydronium ions. 
B)  contains half as many hydronium ions. 
C)  contains 100 times as many hydronium ions. 
D)  contains 0.01 times as many hydronium ions. 
E)  contains four times as many hydronium ions. 
A)  contains twice as many hydronium ions. 
B)  contains half as many hydronium ions. 
C)  contains 100 times as many hydronium ions. 
D)  contains 0.01 times as many hydronium ions. 
E)  contains four times as many hydronium ions.

Question 14

What is the pH of pure water at 25oC?

Accepted Answer

A)  0 
B)  1 
C)  10 
D)  14 
E)  None of these 
A)  0 
B)  1 
C)  10 
D)  14 
E)  None of these

Question 15

Rank these substances in order of increasing acidity (from the least acidic to the most acidic). ​
1.0 M HCOOH, 1.0 M NaHCO3, 1.0 M H2SO4

Accepted Answer

A)  1.0 M HCOOH 3 2SO4 
B)  1.0 M NaHCO3 2SO4 
C)  1.0 M H2SO4 3 2SO4 3 
E)  1.0 M NaHCO3 2SO4 < 1.0 M HCOOH 
A)  1.0 M HCOOH 3 2SO4 
B)  1.0 M NaHCO3 2SO4 
C)  1.0 M H2SO4 3 2SO4 3 
E)  1.0 M NaHCO3 2SO4 < 1.0 M HCOOH

Question 16

Which of these has the greatest [H3O+]?

Accepted Answer

A)  pH = 2 
B)  pH = 5 
C)  pH = 7 
D)  pH = 11 
E)  pH = 13 
A)  pH = 2 
B)  pH = 5 
C)  pH = 7 
D)  pH = 11 
E)  pH = 13

Question 17

Which of these substances is an acid?

Accepted Answer

A)  NaHCO3 
B)  NaOH 
C)  NH3 
D)  KOH 
E)  CH3COOH 
A)  NaHCO3 
B)  NaOH 
C)  NH3 
D)  KOH 
E)  CH3COOH

Question 18

Which of these is the primary ingredient in baking soda?

Accepted Answer

A)  NaOH 
B)  Mg(OH)2 
C)  Al(OH)3 
D)  CaCO3 
E)  NaHCO3 
A)  NaOH 
B)  Mg(OH)2 
C)  Al(OH)3 
D)  CaCO3 
E)  NaHCO3

Question 19

Which of these sets indicating relative acid strength is correct ?

Accepted Answer

A)  H2CO3> NH3 
B)  HCOOH > H2SO4 
C)  C5H5N > H3PO4 
D)  KOH > CH3COOH 
E)  C6H5COOH > HNO3 
A)  H2CO3> NH3 
B)  HCOOH > H2SO4 
C)  C5H5N > H3PO4 
D)  KOH > CH3COOH 
E)  C6H5COOH > HNO3

Question 20

Which of these substances is represented in the diagram?
​

Accepted Answer

A)  A weak acid 
B)  A weak base 
C)  A strong acid 
D)  A strong base 
E)  A salt 
A)  A weak acid 
B)  A weak base 
C)  A strong acid 
D)  A strong base 
E)  A salt

Which of these is not a base?

Which of these are properties of acids? I. They are sour in taste. II. They turn red litmus paper blue. III. They dissolve many metals. IV. They feel slippery

Which of these statements regarding pH is incorrect ?

Which of these acids is not found in wines?

Rain is naturally acidic as a result of _____ gas reacting with the water.

_____ is responsible for the disagreeably sour taste in vomit.

Which of these statements about acid rain is correct?

Which of these is the active ingredient in aspirin?

Which of the following laboratory acids is used in the cleaning of metals?

Which of these pairs represents the products of the dissociation of the following compound in water? Mg(OH)₂ = _ + _

Which of these statements concerning pH is incorrect ?

Which of these is the best definition of a Bronsted-Lowry acid?

Compared with a solution that has a pH of 2.00, a solution that has a pH of 4.00:

What is the pH of pure water at 25^oC?

Rank these substances in order of increasing acidity (from the least acidic to the most acidic). 1.0 M HCOOH, 1.0 M NaHCO₃, 1.0 M H₂SO₄

Which of these has the greatest [H₃O⁺]?

Which of these substances is an acid?

Which of these is the primary ingredient in baking soda?

Which of these sets indicating relative acid strength is correct ?

Which of these substances is represented in the diagram?

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Exam 13: Acids and Bases: the Molecules Responsible for Sour and Bitter

Which of these is not a base?

Which of these are properties of acids? I. They are sour in taste. II. They turn red litmus paper blue. III. They dissolve many metals. IV. They feel slippery

Which of these statements regarding pH is incorrect ?

Which of these acids is not found in wines?

Rain is naturally acidic as a result of _____ gas reacting with the water.

_____ is responsible for the disagreeably sour taste in vomit.

Which of these statements about acid rain is correct?

Which of these is the active ingredient in aspirin?

Which of the following laboratory acids is used in the cleaning of metals?

Which of these pairs represents the products of the dissociation of the following compound in water? ​ Mg(OH)2 = _____ + _____

Which of these statements concerning pH is incorrect ?

Which of these is the best definition of a Bronsted-Lowry acid?

Compared with a solution that has a pH of 2.00, a solution that has a pH of 4.00:

What is the pH of pure water at 25oC?

Rank these substances in order of increasing acidity (from the least acidic to the most acidic). ​ 1.0 M HCOOH, 1.0 M NaHCO3, 1.0 M H2SO4

Which of these has the greatest [H3O+]?

Which of these substances is an acid?

Which of these is the primary ingredient in baking soda?

Which of these sets indicating relative acid strength is correct ?

Which of these substances is represented in the diagram? ​

Molecular Reasons

The Chemists Toolbox

Atoms and Elements

Molecules, Compounds, and Chemical Reactions

Chemical Bonding

Organic Chemistry

Light and Color

Nuclear Chemistry

Energy for Today

Energy for Tomorrow: Solar and Other Renewable Energy Sources

The Air Around Us

The Liquids and Solids Around Us: Especially Water

Oxidation and Reduction

The Chemistry of Household Products

Biochemistry and Biotechnology

Drugs and Medicine: Healing, Helping, and Hurting

The Chemistry of Food

Nanotechnology Online Only

Filters

Which of these pairs represents the products of the dissociation of the following compound in water? Mg(OH)₂ = _ + _

What is the pH of pure water at 25^oC?

Rank these substances in order of increasing acidity (from the least acidic to the most acidic). 1.0 M HCOOH, 1.0 M NaHCO₃, 1.0 M H₂SO₄

Which of these has the greatest [H₃O⁺]?

Which of these substances is represented in the diagram?