Question 1

Which of these pairs represent the products of this dissociation in water?
​
Mg(OH)2 = ____ + ____

Accepted Answer

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

Question 2

Which of these substances is a weak base?

Accepted Answer

A) HCN 
B) CH3COOH 
C) HCl 
D) HCOOH 
E) C5H5N 
A) HCN 
B) CH3COOH 
C) HCl 
D) HCOOH 
E) C5H5N E

Question 3

Which of these acids is not found in wines?

Accepted Answer

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

Question 4

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 5

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 6

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) Can't tell from the given information. 
A) 0 
B) 1.00 
C) 13.00 
D) 14.00 
E) Can't tell from the given information.

Question 7

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

Question 8

Which of these substances is most acidic?

Accepted Answer

A) Lemons 
B) Pure water 
C) Milk of magnesia 
D) Blood 
E) Wine 
A) Lemons 
B) Pure water 
C) Milk of magnesia 
D) Blood 
E) Wine

Question 9

Which of these is the active ingredient in aspirin?

Accepted Answer

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

Question 10

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 11

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 the above are correct. 
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 the above are correct.

Question 12

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

Accepted Answer

A) contains twice as much hydroxide ion. 
B) contains half as much hydroxide ion. 
C) contains 100 times as much hydroxide ion. 
D) contains .01 times as much hydroxide ion. 
E) none of the above 
A) contains twice as much hydroxide ion. 
B) contains half as much hydroxide ion. 
C) contains 100 times as much hydroxide ion. 
D) contains .01 times as much hydroxide ion. 
E) none of the above

Question 13

Which of these compounds can not act as a Bronsted-Lowry acid?

Accepted Answer

A) H3O+ 
B) H2O 
C) CH3COOH 
D) MgO 
E) NH3 
A) H3O+ 
B) H2O 
C) CH3COOH 
D) MgO 
E) NH3

Question 14

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

Accepted Answer

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

Question 15

Which of these substances is most acidic?

Accepted Answer

A) Pure water 
B) Corn 
C) Soft drinks 
D) Blood 
E) Beer 
A) Pure water 
B) Corn 
C) Soft drinks 
D) Blood 
E) Beer

Question 16

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 17

Which of these statements concerning pure water is incorrect ?

Accepted Answer

A) The pH is 7 at 25 oC. 
B) It contains no ions. 
C) It is neutral. 
D) It can act as a proton acceptor. 
A) The pH is 7 at 25 oC. 
B) It contains no ions. 
C) It is neutral. 
D) It can act as a proton acceptor.

Question 18

Which of these are properties of acids?
I. Sour
II. Turn litmus blue
III. Dissolve some metals
IV. 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

Question 19

Which of the following substances is a base?

Accepted Answer

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

Question 20

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+ ion 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+ ion in solution.

Which of these pairs represent the products of this dissociation in water? Mg(OH)₂ = +

Which of these substances is a weak base?

Which of these acids is not found in wines?

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

Which of these substances is an acid?

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

Which of these statements concerning pH is incorrect ?

Which of these substances is most acidic?

Which of these is the active ingredient in aspirin?

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

Which of these statements about acid rain is correct?

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

Which of these compounds can not act as a Bronsted-Lowry acid?

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

Which of these substances is most acidic?

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

Which of these statements concerning pure water is incorrect ?

Which of these are properties of acids? I. Sour II. Turn litmus blue III. Dissolve some metals IV. Slippery

Which of the following substances is a base?

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

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

Which of these pairs represent the products of this dissociation in water? ​ Mg(OH)2 = ____ + ____

Which of these substances is a weak base?

Which of these acids is not found in wines?

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

Which of these substances is an acid?

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

Which of these statements concerning pH is incorrect ?

Which of these substances is most acidic?

Which of these is the active ingredient in aspirin?

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

Which of these statements about acid rain is correct?

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

Which of these compounds can not act as a Bronsted-Lowry acid?

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

Which of these substances is most acidic?

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

Which of these statements concerning pure water is incorrect ?

Which of these are properties of acids? I. Sour II. Turn litmus blue III. Dissolve some metals IV. Slippery

Which of the following substances is a base?

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

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

Filters

Which of these pairs represent the products of this dissociation in water? Mg(OH)₂ = +

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

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