Question 1

Which of these is not a method used by utilities to reduce sulfur dioxide emissions?

Accepted Answer

A)  Burning low-sulfur coal 
B)  Crushing and washing coal to remove sulfur 
C)  Burning coal at high temperatures to break down sulfur 
D)  Employing flue gas scrubbers in smokestacks, which traps sulfur dioxide 
E)  Encouraging and implementing conservation and efficiency programs for customers 
A)  Burning low-sulfur coal 
B)  Crushing and washing coal to remove sulfur 
C)  Burning coal at high temperatures to break down sulfur 
D)  Employing flue gas scrubbers in smokestacks, which traps sulfur dioxide 
E)  Encouraging and implementing conservation and efficiency programs for customers

Question 2

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

Accepted Answer

A)  Any substance that produces 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 an acid in solution 
E)  Any substance that accepts H+ ions in solution 
A)  Any substance that produces 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 an acid in solution 
E)  Any substance that accepts H+ ions in solution

Question 3

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

Question 4

Which of these substances is the most acidic?

Accepted Answer

A)  Pure water 
B)  Milk of magnesia 
C)  Beer 
D)  Ammonia 
E)  Egg whites 
A)  Pure water 
B)  Milk of magnesia 
C)  Beer 
D)  Ammonia 
E)  Egg whites

Question 5

Which of these is the Bronsted-Lowry acid in this chemical equation?
​
H2O + CN −  → HCN + OH −

Accepted Answer

A)  H3O+ 
B)  H2O 
C)  H2SO4 
D)  CN −  
E)  OH −  
A)  H3O+ 
B)  H2O 
C)  H2SO4 
D)  CN −  
E)  OH −

Question 6

Which of these acids is responsible for the apple flavor of some wines?

Accepted Answer

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

Question 7

Which of these is the Bronsted-Lowry base in this chemical equation?
​
HSO4 −  + OH −    
 SO42 −  + H2O

Accepted Answer

A)  HSO4 −  
B)  H2O − 
C)  S 
D)  OH −  
E)  NH3 
A)  HSO4 −  
B)  H2O − 
C)  S 
D)  OH −  
E)  NH3

Question 8

Which of the following acids are found in most soft drinks?

Accepted Answer

A)  Acetic and citric  acids 
B)  Lactic and citric  acids 
C)  Malic and lactic  acids 
D)  Carbonic and phosphoric  acids 
E)  Hydrochloric and phosphoric  acids 
A)  Acetic and citric  acids 
B)  Lactic and citric  acids 
C)  Malic and lactic  acids 
D)  Carbonic and phosphoric  acids 
E)  Hydrochloric and phosphoric  acids

Question 9

Which of these substances is a weak acid?

Accepted Answer

A)  NH3 
B)  HCOOH 
C)  HCl 
D)  HNO3 
E)  C5H5N 
A)  NH3 
B)  HCOOH 
C)  HCl 
D)  HNO3 
E)  C5H5N

Question 10

What is the pH of a 1.0 M solution of a weak acid?

Accepted Answer

A)  0 
B)  1.00 
C)  13.00 
D)  14.00 
E)  6.00 
A)  0 
B)  1.00 
C)  13.00 
D)  14.00 
E)  6.00

Question 11

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 hydroxide ions. 
B)  contains half as many hydroxide ions. 
C)  contains 100 times as many hydroxide ions. 
D)  contains .01 times as many hydroxide ions. 
E)  contains four times as many hydroxide ions. 
A)  contains twice as many hydroxide ions. 
B)  contains half as many hydroxide ions. 
C)  contains 100 times as many hydroxide ions. 
D)  contains .01 times as many hydroxide ions. 
E)  contains four times as many hydroxide ions.

Question 12

The most acidic rainfall in the United States occurs in    _____.

Accepted Answer

A)  the northwestern region 
B)  the southwestern region 
C)  the southeastern region 
D)  the northeastern region 
E)  the central region 
A)  the northwestern region 
B)  the southwestern region 
C)  the southeastern region 
D)  the northeastern region 
E)  the central region

Question 13

Which of these equations best represents the reaction that takes place in the stomach when the antacid calcium carbonate is taken?

Accepted Answer

A)  NaHCO3 = H2O + CO 
B)  CaCO3  = H2O + CO 
C)  CO32 −  + 2H3O+ = 3H2O + CO2 
D)  Ca2+ + 2H3O+ = 3H2O + CaO 
E)  CaCO3 + H3O+ = Ca(OH)2 + CO2 
A)  NaHCO3 = H2O + CO 
B)  CaCO3  = H2O + CO 
C)  CO32 −  + 2H3O+ = 3H2O + CO2 
D)  Ca2+ + 2H3O+ = 3H2O + CaO 
E)  CaCO3 + H3O+ = Ca(OH)2 + CO2

Question 14

Which of these represents the average pH of ordinary rainwater?

Accepted Answer

A)  1.0 
B)  2.8 
C)  3.5 
D)  5.6 
E)  7.0 
A)  1.0 
B)  2.8 
C)  3.5 
D)  5.6 
E)  7.0

Question 15

Which of these is the Bronsted-Lowry base in this chemical equation?
​
H2O + CH3COOH  
CH3COO −  + H3O+

Accepted Answer

A)  H3O+ 
B)  H2O 
C)  CH3COOH 
D)  CH3COO-  
E)  OH- 
A)  H3O+ 
B)  H2O 
C)  CH3COOH 
D)  CH3COO-  
E)  OH-

Question 16

Which of the following substances is a base?

Accepted Answer

A)  Sodium hydroxide 
B)  Potassium hydroxide 
C)  Sodium bicarbonate 
D)  Ammonia 
E)  All of these 
A)  Sodium hydroxide 
B)  Potassium hydroxide 
C)  Sodium bicarbonate 
D)  Ammonia 
E)  All of these

Question 17

Which of these acids is responsible for the sourness in many fruits?

Accepted Answer

A)  Muriatic acid 
B)  Citric acid 
C)  Sulfuric acid 
D)  Acetic acid 
E)  Benzoic acid 
A)  Muriatic acid 
B)  Citric acid 
C)  Sulfuric acid 
D)  Acetic acid 
E)  Benzoic acid

Question 18

Which of these acids is responsible for the tartness of vinegar?

Accepted Answer

A)  Muriatic acid 
B)  Citric acid 
C)  Sulfuric acid 
D)  Acetic acid 
E)  Benzoic acid 
A)  Muriatic acid 
B)  Citric acid 
C)  Sulfuric acid 
D)  Acetic acid 
E)  Benzoic acid

Question 19

What is the pH of a 1.0 M solution of a strong base?

Accepted Answer

A)  0 
B)  1.00 
C)  9.00 
D)  14.00 
E)  5.00 
A)  0 
B)  1.00 
C)  9.00 
D)  14.00 
E)  5.00

Question 20

Which of these substances has the highest pH?

Accepted Answer

A)  CH3COOH 
B)  HNO3 
C)  NH3 
D)  HCOOH 
E)  NaOH 
A)  CH3COOH 
B)  HNO3 
C)  NH3 
D)  HCOOH 
E)  NaOH

Which of these is not a method used by utilities to reduce sulfur dioxide emissions?

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

Which of these substances is represented in the diagram?

Which of these substances is the most acidic?

Which of these is the Bronsted-Lowry acid in this chemical equation? H₂O + CN⁻ → HCN + OH⁻

Which of these acids is responsible for the apple flavor of some wines?

Which of these is the Bronsted-Lowry base in this chemical equation? HSO₄⁻ + OH⁻ SO₄^{2 −} + H₂O

Which of the following acids are found in most soft drinks?

Which of these substances is a weak acid?

What is the pH of a 1.0 M solution of a weak acid?

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

The most acidic rainfall in the United States occurs in _____.

Which of these equations best represents the reaction that takes place in the stomach when the antacid calcium carbonate is taken?

Which of these represents the average pH of ordinary rainwater?

Which of these is the Bronsted-Lowry base in this chemical equation? H₂O + CH₃COOH CH₃COO⁻ + H₃O⁺

Which of the following substances is a base?

Which of these acids is responsible for the sourness in many fruits?

Which of these acids is responsible for the tartness of vinegar?

What is the pH of a 1.0 M solution of a strong base?

Which of these substances has the highest pH?

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

Which of these is not a method used by utilities to reduce sulfur dioxide emissions?

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

Which of these substances is represented in the diagram? ​

Which of these substances is the most acidic?

Which of these is the Bronsted-Lowry acid in this chemical equation? ​ H2O + CN − → HCN + OH −

Which of these acids is responsible for the apple flavor of some wines?

Which of these is the Bronsted-Lowry base in this chemical equation? ​ HSO4 − + OH − SO42 − + H2O

Which of the following acids are found in most soft drinks?

Which of these substances is a weak acid?

What is the pH of a 1.0 M solution of a weak acid?

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

The most acidic rainfall in the United States occurs in _____.

Which of these equations best represents the reaction that takes place in the stomach when the antacid calcium carbonate is taken?

Which of these represents the average pH of ordinary rainwater?

Which of these is the Bronsted-Lowry base in this chemical equation? ​ H2O + CH3COOH CH3COO − + H3O+

Which of the following substances is a base?

Which of these acids is responsible for the sourness in many fruits?

Which of these acids is responsible for the tartness of vinegar?

What is the pH of a 1.0 M solution of a strong base?

Which of these substances has the highest pH?

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 substances is represented in the diagram?

Which of these is the Bronsted-Lowry acid in this chemical equation? H₂O + CN⁻ → HCN + OH⁻

Which of these is the Bronsted-Lowry base in this chemical equation? HSO₄⁻ + OH⁻ SO₄^{2 −} + H₂O

Which of these is the Bronsted-Lowry base in this chemical equation? H₂O + CH₃COOH CH₃COO⁻ + H₃O⁺