Question 1

What is the pH of an aqueous solution that has a hydrogen-ion concentration of 4.83 × 10-9 mol/L?

Accepted Answer

Question 2

Which of the following bases is the weakest base?

Accepted Answer

A)  ammonia, Kb = 1.7 × 10-5 
B)  aniline, Kb = 4.2 × 10-10 
C)  trimethylamine, Kb = 7.4 × 10-5 
D)  methylamine, Kb = 4.4 × 10-4 
A)  ammonia, Kb = 1.7 × 10-5 
B)  aniline, Kb = 4.2 × 10-10 
C)  trimethylamine, Kb = 7.4 × 10-5 
D)  methylamine, Kb = 4.4 × 10-4

Question 3

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 4

A concentrated solution of a non-electrolyte such as glucose can be made to conduct electricity.

Accepted Answer

A) True 
 B)False

Question 5

Match each substance with its corresponding fact.
-CH?CO?-

Accepted Answer

A) It is the conjugate base of CH?CO?H. 
B) It does not have a conjugate base. 
C) It is the conjugate acid of HCO?-. 
D) Its conjugate acid is HSO?-. 
E) Its conjugate base is CO?2-.
F)Its conjugate base is HSO?-. 
A) It is the conjugate base of CH?CO?H. 
B) It does not have a conjugate base. 
C) It is the conjugate acid of HCO?-. 
D) Its conjugate acid is HSO?-. 
E) Its conjugate base is CO?2-.
F)Its conjugate base is HSO?-.

Question 6

Identify each of the substances as an electrolyte or non-electrolyte.
-sports drink

Accepted Answer

A) non-electrolyte 
B) electrolyte 
A) non-electrolyte 
B) electrolyte

Question 7

Match each substance with its corresponding fact.
-HCO?-

Accepted Answer

A) It is the conjugate base of CH?CO?H. 
B) It does not have a conjugate base. 
C) It is the conjugate acid of HCO?-. 
D) Its conjugate acid is HSO?-. 
E) Its conjugate base is CO?2-.
F)Its conjugate base is HSO?-. 
A) It is the conjugate base of CH?CO?H. 
B) It does not have a conjugate base. 
C) It is the conjugate acid of HCO?-. 
D) Its conjugate acid is HSO?-. 
E) Its conjugate base is CO?2-.
F)Its conjugate base is HSO?-.

Question 8

Match each of the acids with the maximum number of H?O+ produced per molecule of acid.
-sulfuric acid

Accepted Answer

A) 3 
B) 1 
C) 2 
A) 3 
B) 1 
C) 2

Question 9

Which of the following acids is the strongest acid?

Accepted Answer

A)  acetic acid, Ka = 1.8 × 10-5 
B)  nitrous acid, Ka = 4.5 × 10-4 
C)  hydrogen peroxide, Ka = 2.4 × 10-12 
D)  hypochlorous acid, Ka = 3.5 × 10-8 
A)  acetic acid, Ka = 1.8 × 10-5 
B)  nitrous acid, Ka = 4.5 × 10-4 
C)  hydrogen peroxide, Ka = 2.4 × 10-12 
D)  hypochlorous acid, Ka = 3.5 × 10-8

Question 10

Basic solutions ________.

Accepted Answer

A)  have a higher concentration of hydronium ions than hydroxide ions 
B)  have a lower concentration of hydronium ions than hydroxide ions 
C)  turn blue litmus paper to pink 
D)  decolorize phenolphthalein solutions 
A)  have a higher concentration of hydronium ions than hydroxide ions 
B)  have a lower concentration of hydronium ions than hydroxide ions 
C)  turn blue litmus paper to pink 
D)  decolorize phenolphthalein solutions

Question 11

Identify each [H?O+] / [OH-] / pH / pOH  as acidic or basic.
-pOH = 3.1

Accepted Answer

A) Basic 
B) Acidic 
A) Basic 
B) Acidic

Question 12

Which of the following compounds or ions qualifies as a Bronsted-Lowry acid?

Accepted Answer

A)  KOH 
B)  NH₃ 
C)  Na+ 
D)  NH₄+ 
A)  KOH 
B)  NH₃ 
C)  Na+ 
D)  NH₄+

Question 13

Which of the following compounds is not a strong electrolyte when dissolved in distilled water?

Accepted Answer

A)  potassium chloride 
B)  sulfuric acid 
C)  acetic acid 
D)  potassium hydroxide 
A)  potassium chloride 
B)  sulfuric acid 
C)  acetic acid 
D)  potassium hydroxide

What is the pH of an aqueous solution that has a hydrogen-ion concentration of 4.83 × 10^-9 mol/L?

Which of the following bases is the weakest base?

What are the ions formed in glucose, C₆H₁₂O₆?

A concentrated solution of a non-electrolyte such as glucose can be made to conduct electricity.

Match each substance with its corresponding fact. -CH?CO?-

Identify each of the substances as an electrolyte or non-electrolyte. -sports drink

Match each substance with its corresponding fact. -HCO?-

Match each of the acids with the maximum number of H?O+ produced per molecule of acid. -sulfuric acid

Which of the following acids is the strongest acid?

Basic solutions ________.

Identify each [H?O+] / [OH-] / pH / pOH as acidic or basic. -pOH = 3.1

Which of the following compounds or ions qualifies as a Bronsted-Lowry acid?

Which of the following compounds is not a strong electrolyte when dissolved in distilled water?

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

What is the pH of an aqueous solution that has a hydrogen-ion concentration of 4.83 × 10-9 mol/L?

Which of the following bases is the weakest base?

What are the ions formed in glucose, C₆H₁₂O6?

A concentrated solution of a non-electrolyte such as glucose can be made to conduct electricity.

Match each substance with its corresponding fact. -CH?CO?-

Identify each of the substances as an electrolyte or non-electrolyte. -sports drink

Match each substance with its corresponding fact. -HCO?-

Match each of the acids with the maximum number of H?O+ produced per molecule of acid. -sulfuric acid

Which of the following acids is the strongest acid?

Basic solutions ________.

Identify each [H?O+] / [OH-] / pH / pOH as acidic or basic. -pOH = 3.1

Which of the following compounds or ions qualifies as a Bronsted-Lowry acid?

Which of the following compounds is not a strong electrolyte when dissolved in distilled water?

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 that has a hydrogen-ion concentration of 4.83 × 10^-9 mol/L?

What are the ions formed in glucose, C₆H₁₂O₆?