Question 1

Which of the following is a triprotic acid when dissolved in water?

Accepted Answer

A) hydrobromic 
B) sulfuric 
C) hypochlorous 
D) phosphoric 
A) hydrobromic 
B) sulfuric 
C) hypochlorous 
D) phosphoric

Question 2

Stomach juices have a pH close to ________.

Accepted Answer

A) 1.5 
B) 2.8 
C) 4.5 
D) 7.0 
A) 1.5 
B) 2.8 
C) 4.5 
D) 7.0

Question 3

What is the pH of an aqueous solution having a hydrogen-ion concentration of 6.83 × 10-3 mol/L?

Accepted Answer

A) 6.831 
B) 0.834 
C) 2.166 
D) 1.029 
A) 6.831 
B) 0.834 
C) 2.166 
D) 1.029

Question 4

A solution of HCl/Cl- can act as a buffer.

Accepted Answer

A) True 
 B)False

Question 5

What are the ions formed in glucose, C6H12O6 ?

Accepted Answer

A) C6H11O6- + H+ 
B) C6H11O5+ + OH- 
C) CO2 + H2O 
D) No ions are formed. 
A) C6H11O6- + H+ 
B) C6H11O5+ + OH- 
C) CO2 + H2O 
D) No ions are formed.

Question 6

The carbonate (CO32-)/bicarbonate (HCO3-)pair represents a base and its conjugate acid.

Accepted Answer

A) True 
 B)False

Question 7

Which is the most basic solution?

Accepted Answer

A) a solution whose [H+] = 100 
B) a solution whose [OH-] = 10-14 
C) a solution whose pH = 0 
D) All of the above have the same degree of basicity. 
A) a solution whose [H+] = 100 
B) a solution whose [OH-] = 10-14 
C) a solution whose pH = 0 
D) All of the above have the same degree of basicity.

Question 8

The autodissociation of water gives pure water a pH of 4 and thus a higher concentration of H3O+ than OH-.

Accepted Answer

A) True 
 B)False

Question 9

Which of the following produces only one OH- ion per molecule of base when dissolved in water?

Accepted Answer

A) potassium hydroxide 
B) calcium hydroxide 
C) aluminum hydroxide 
D) barium hydroxide 
A) potassium hydroxide 
B) calcium hydroxide 
C) aluminum hydroxide 
D) barium hydroxide

Question 10

Which of the following produces only one H3O+ ion per molecule of acid when dissolved in water, although itself has other non-ionizable hydrogens?

Accepted Answer

A) hydrobromic 
B) sulfurous 
C) hypochlorous 
D) acetic 
A) hydrobromic 
B) sulfurous 
C) hypochlorous 
D) acetic

Question 11

Carbonic, phosphoric, and sulfuric acids produce two H3O+ ions per molecule of acid when dissolved in water.

Accepted Answer

A) True 
 B)False

Question 12

CH3CO2H has four acidic hydrogens.

Accepted Answer

A) True 
 B)False

Question 13

Which of the following can behave both as a Bronsted-Lowry acid and a Bronsted-Lowry base?

Accepted Answer

A) CH4 
B) H2O 
C) SiH4 
D) H2 
A) CH4 
B) H2O 
C) SiH4 
D) H2

Question 14

Which of the following conjugate pairs would form a good buffer?

Accepted Answer

A) HCl/Cl- 
B) OH-/H2O 
C) NH3/NH4+ 
D) HNO3/NO3- 
A) HCl/Cl- 
B) OH-/H2O 
C) NH3/NH4+ 
D) HNO3/NO3-

Which of the following is a triprotic acid when dissolved in water?

Stomach juices have a pH close to ________.

What is the pH of an aqueous solution having a hydrogen-ion concentration of 6.83 × 10^-³ mol/L?

A solution of HCl/Cl^- can act as a buffer.

What are the ions formed in glucose, C₆H₁₂O₆ ?

The carbonate (CO₃^2-)/bicarbonate (HCO₃^-)pair represents a base and its conjugate acid.

Which is the most basic solution?

The autodissociation of water gives pure water a pH of 4 and thus a higher concentration of H₃O⁺ than OH^-.

Which of the following produces only one OH^-ion per molecule of base when dissolved in water?

Which of the following produces only one H₃O⁺ ion per molecule of acid when dissolved in water, although itself has other non-ionizable hydrogens?

Carbonic, phosphoric, and sulfuric acids produce two H₃O⁺ ions per molecule of acid when dissolved in water.

CH₃CO₂H has four acidic hydrogens.

Which of the following can behave both as a Bronsted-Lowry acid and a Bronsted-Lowry base?

Which of the following conjugate pairs would form a good buffer?

What Is Chemistry

The Numerical Side of Chemistry

The Evolution of Atomic Theory

The Modern Model of the Atom

Chemical Bonding and Nomenclature

The Shape of Molecules

Intermolecular Forces and the Phases of Matter

Chemical Reactions

Stoichiometry and the Mole

Electron Transfer in Chemical Reactions

What If There Were No Intermolecular Forces the Ideal Gas

Solutions

When Reactants Turn Into Products

Chemical Equilibrium

Nuclear Chemistry

The Chemistry of Carbon

Synthetic and Biological Polymers

Filters

Exam 15: Electrolytes, Acids, and Bases

Which of the following is a triprotic acid when dissolved in water?

Stomach juices have a pH close to ________.

What is the pH of an aqueous solution having a hydrogen-ion concentration of 6.83 × 10-3 mol/L?

A solution of HCl/Cl- can act as a buffer.

What are the ions formed in glucose, C6H12O6 ?

The carbonate (CO32-)/bicarbonate (HCO3-)pair represents a base and its conjugate acid.

Which is the most basic solution?

The autodissociation of water gives pure water a pH of 4 and thus a higher concentration of H3O+ than OH-.

Which of the following produces only one OH- ion per molecule of base when dissolved in water?

Which of the following produces only one H3O+ ion per molecule of acid when dissolved in water, although itself has other non-ionizable hydrogens?

Carbonic, phosphoric, and sulfuric acids produce two H3O+ ions per molecule of acid when dissolved in water.

CH3CO2H has four acidic hydrogens.

Which of the following can behave both as a Bronsted-Lowry acid and a Bronsted-Lowry base?

Which of the following conjugate pairs would form a good buffer?

What Is Chemistry

The Numerical Side of Chemistry

The Evolution of Atomic Theory

The Modern Model of the Atom

Chemical Bonding and Nomenclature

The Shape of Molecules

Intermolecular Forces and the Phases of Matter

Chemical Reactions

Stoichiometry and the Mole

Electron Transfer in Chemical Reactions

What If There Were No Intermolecular Forces the Ideal Gas

Solutions

When Reactants Turn Into Products

Chemical Equilibrium

Nuclear Chemistry

The Chemistry of Carbon

Synthetic and Biological Polymers

Filters

What is the pH of an aqueous solution having a hydrogen-ion concentration of 6.83 × 10^-³ mol/L?

A solution of HCl/Cl^- can act as a buffer.

What are the ions formed in glucose, C₆H₁₂O₆ ?

The carbonate (CO₃^2-)/bicarbonate (HCO₃^-)pair represents a base and its conjugate acid.

The autodissociation of water gives pure water a pH of 4 and thus a higher concentration of H₃O⁺ than OH^-.

Which of the following produces only one OH^-ion per molecule of base when dissolved in water?

Which of the following produces only one H₃O⁺ ion per molecule of acid when dissolved in water, although itself has other non-ionizable hydrogens?

Carbonic, phosphoric, and sulfuric acids produce two H₃O⁺ ions per molecule of acid when dissolved in water.

CH₃CO₂H has four acidic hydrogens.