Question 1

What is the role of the kidney in maintaining acid-base homeostasis in the blood?

Accepted Answer

A)  removing excess CO2 
B)  adding extra H+ as needed 
C)  adding/removing water 
D)  adding/removing hydrogen carbonate ion 
E)  All of the above are roles of the kidney. 
A)  removing excess CO2 
B)  adding extra H+ as needed 
C)  adding/removing water 
D)  adding/removing hydrogen carbonate ion 
E)  All of the above are roles of the kidney. D

Question 2

Select the choice that correctly states whether the substance is an acid or a base.

Accepted Answer

A)  Vinegar is basic. 
B)  Amines are basic. 
C)  Gastric juice is basic. 
D)  Sodium hydroxide is acidic. 
E)  Soap is acidic. 
A)  Vinegar is basic. 
B)  Amines are basic. 
C)  Gastric juice is basic. 
D)  Sodium hydroxide is acidic. 
E)  Soap is acidic. B

Question 3

A conjugate acid-base pair is

Accepted Answer

A)  the reactants in an acid-base reaction. 
B)  the products of an acid-base reaction. 
C)  two species that differ only by a proton. 
D)  two species that differ only by a hydroxyl group. 
E)  a single molecule that can act as both an acid and a base. 
A)  the reactants in an acid-base reaction. 
B)  the products of an acid-base reaction. 
C)  two species that differ only by a proton. 
D)  two species that differ only by a hydroxyl group. 
E)  a single molecule that can act as both an acid and a base. C

Question 4

What is the pH of a solution with a [H3O+] of 1.0 × 10-5 M?

Accepted Answer

A)  9.00 
B)  1.0 × 10-5 M 
C)  -5.00 
D)  -9.00 
E)  5.00 
A)  9.00 
B)  1.0 × 10-5 M 
C)  -5.00 
D)  -9.00 
E)  5.00

Question 5

A blood sample has a pH of 7.42.What is the concentration of hydronium in the sample?

Accepted Answer

A)  0.87 M 
B)  2.6 × 107 M 
C)  -2.6 × 107 M 
D)  3.8 × 108 M 
E)  3.8 × 10-8 M 
A)  0.87 M 
B)  2.6 × 107 M 
C)  -2.6 × 107 M 
D)  3.8 × 108 M 
E)  3.8 × 10-8 M

Question 6

Each circle is a sample of an aqueous acidic or basic solution.Which solution contains a weak acid?

Accepted Answer

A)  figure a 
B)  figure b 
C)  figure c 
D)  figure d 
E)  figure e 
A)  figure a 
B)  figure b 
C)  figure c 
D)  figure d 
E)  figure e

Question 7

The reaction between acetic acid and water is given below, followed by a list of changes that could be made to the reaction solution.Which change will result in the equilibrium shifting to the left? CH3COOH + H2O ⇌ CH3COO- + H3O+
Changes that could be made to the solution
I.Adding more CH3COOH
II.Removing H2O
III.Removing H3O+
IV.Adding more CH3COO-

Accepted Answer

A)  All of these changes will result in the equilibrium shifting to the left. 
B)  Only I will result in the equilibrium shifting to the left. 
C)  Only IV will result in the equilibrium shifting to the left. 
D)  I and III will result in the equilibrium shifting to the left. 
E)  II and IV will result in the equilibrium shifting to the left. 
A)  All of these changes will result in the equilibrium shifting to the left. 
B)  Only I will result in the equilibrium shifting to the left. 
C)  Only IV will result in the equilibrium shifting to the left. 
D)  I and III will result in the equilibrium shifting to the left. 
E)  II and IV will result in the equilibrium shifting to the left.

Question 8

Which condition could cause respiratory acidosis?

Accepted Answer

A)  hyperventilation 
B)  asthma 
C)  kidney failure 
D)  excessive vomiting 
E)  starvation 
A)  hyperventilation 
B)  asthma 
C)  kidney failure 
D)  excessive vomiting 
E)  starvation

Question 9

If the concentration of hydroxide ion in water is 1 × 10-4 M, the concentration of hydronium ion is ______ and there is more _____ in the solution.

Accepted Answer

A)  1 × 10-10 M; hydronium 
B)  1 × 10-10 M; hydroxide 
C)  1 × 104 M; hydronium 
D)  1 × 104 M; hydroxide 
A)  1 × 10-10 M; hydronium 
B)  1 × 10-10 M; hydroxide 
C)  1 × 104 M; hydronium 
D)  1 × 104 M; hydroxide

Question 10

Which strong acid is found in the body?

Accepted Answer

A)  HNO3 
B)  HCl 
C)  H2SO4 
D)  HClO4 
E)  HBr 
A)  HNO3 
B)  HCl 
C)  H2SO4 
D)  HClO4 
E)  HBr

Question 11

What is the pH of a urine sample with a hydronium concentration of 7.9 × 10-8?

Accepted Answer

A)  -7.10 
B)  7.10 
C)  6.90 
D)  -6.90 
E)  7.00 
A)  -7.10 
B)  7.10 
C)  6.90 
D)  -6.90 
E)  7.00

Question 12

Each circle is a sample of an aqueous acidic or basic solution.Which solution contains a strong base?

Accepted Answer

A)  figure a 
B)  figure b 
C)  figure c 
D)  figure d 
E)  figure e 
A)  figure a 
B)  figure b 
C)  figure c 
D)  figure d 
E)  figure e

Question 13

Which base is a strong base?

Accepted Answer

A)  LiOH 
B)  CH3CH2NH2 
C)  NH2CH2COOH 
D)  NH2CH2CH2CH2NH2 
E)  All of the above molecules are strong bases. 
A)  LiOH 
B)  CH3CH2NH2 
C)  NH2CH2COOH 
D)  NH2CH2CH2CH2NH2 
E)  All of the above molecules are strong bases.

Question 14

Adding an acid to pure water will change which of the following values: [H3O+], [OH-], and/or Kw?

Accepted Answer

A)  [H3O+] only 
B)  [OH-] only 
C)  Kw only 
D)  [H3O+] and [OH-], but not Kw 
E)  All of these values will be changed. 
A)  [H3O+] only 
B)  [OH-] only 
C)  Kw only 
D)  [H3O+] and [OH-], but not Kw 
E)  All of these values will be changed.

Question 15

The boxed species in the following reaction is

Accepted Answer

A)  a hydroxide ion. 
B)  a hydronium ion. 
C)  a proton. 
D)  the acid. 
E)  the conjugate acid. 
A)  a hydroxide ion. 
B)  a hydronium ion. 
C)  a proton. 
D)  the acid. 
E)  the conjugate acid.

Question 16

The concentration of H3O+ in a solution is 1 × 10-4 M.What is the concentration of hydroxide ion in this solution?

Accepted Answer

A)  1 × 10-10 M 
B)  1 × 10-8 M 
C)  1 × 10-12 M 
D)  1 × 10-7 M 
E)  1 × 1010 M 
A)  1 × 10-10 M 
B)  1 × 10-8 M 
C)  1 × 10-12 M 
D)  1 × 10-7 M 
E)  1 × 1010 M

Question 17

Which of the following equations is the correctly balanced equation for the neutralization reaction of aluminum hydroxide and HCl?

Accepted Answer

A)  Al(OH)3 (s)+ HCl (aq)→ 3 H2O (l)+ AlCl3 (aq) 
B)  3 Al(OH)3 (s)+ HCl (aq)→ 3 H2O (l)+ AlCl3 (aq) 
C)  Al(OH)3 (s)+ 3 HCl (aq)→ 3 H2O (l)+ AlCl3 (aq) 
D)  Al(OH)3 (s)+ HCl (aq)→ H2O (l)+ AlCl3 (aq) 
E)  3 Al(OH)3 (s)+ HCl (aq)→ 3 H2O (l)+ 3 AlCl3 (aq) 
A)  Al(OH)3 (s)+ HCl (aq)→ 3 H2O (l)+ AlCl3 (aq) 
B)  3 Al(OH)3 (s)+ HCl (aq)→ 3 H2O (l)+ AlCl3 (aq) 
C)  Al(OH)3 (s)+ 3 HCl (aq)→ 3 H2O (l)+ AlCl3 (aq) 
D)  Al(OH)3 (s)+ HCl (aq)→ H2O (l)+ AlCl3 (aq) 
E)  3 Al(OH)3 (s)+ HCl (aq)→ 3 H2O (l)+ 3 AlCl3 (aq)

Question 18

Which solution has the highest concentration of [OH-]?

Accepted Answer

A)  a solution with a pH of 4 
B)  a solution with a pH of 10 
C)  a solution with a [H3O+] of 6.8 × 10-5 M 
D)  a solution with a [H3O+] of 1 × 10-13 M 
E)  a solution with a [OH-] of 1 × 10-2 M 
A)  a solution with a pH of 4 
B)  a solution with a pH of 10 
C)  a solution with a [H3O+] of 6.8 × 10-5 M 
D)  a solution with a [H3O+] of 1 × 10-13 M 
E)  a solution with a [OH-] of 1 × 10-2 M

Question 19

Water can react as both an acid and a base, depending on its environment.Because of this characteristic, water is a(n)_________ molecule.

Accepted Answer

A)  amphoteric 
B)  autonomous 
C)  complex 
D)  reactive 
E)  conjugated 
A)  amphoteric 
B)  autonomous 
C)  complex 
D)  reactive 
E)  conjugated

Question 20

Which species in the following neutralization reaction are spectator ions? NaOH + HCl → H2O + NaCl

Accepted Answer

A)  H3O+ 
B)  OH- 
C)  H2O 
D)  NaCl 
E)  H+ 
A)  H3O+ 
B)  OH- 
C)  H2O 
D)  NaCl 
E)  H+

What is the role of the kidney in maintaining acid-base homeostasis in the blood?

Select the choice that correctly states whether the substance is an acid or a base.

A conjugate acid-base pair is

What is the pH of a solution with a [H₃O⁺] of 1.0 × 10^-5 M?

A blood sample has a pH of 7.42.What is the concentration of hydronium in the sample?

Each circle is a sample of an aqueous acidic or basic solution.Which solution contains a weak acid?

Which condition could cause respiratory acidosis?

If the concentration of hydroxide ion in water is 1 × 10^-4 M, the concentration of hydronium ion is __ and there is more _ in the solution.

Which strong acid is found in the body?

What is the pH of a urine sample with a hydronium concentration of 7.9 × 10^-8?

Each circle is a sample of an aqueous acidic or basic solution.Which solution contains a strong base?

Which base is a strong base?

Adding an acid to pure water will change which of the following values: [H₃O⁺], [OH^-], and/or K_w?

The boxed species in the following reaction is

The concentration of H₃O⁺ in a solution is 1 × 10^-4 M.What is the concentration of hydroxide ion in this solution?

Which of the following equations is the correctly balanced equation for the neutralization reaction of aluminum hydroxide and HCl?

Which solution has the highest concentration of [OH^-]?

Water can react as both an acid and a base, depending on its environment.Because of this characteristic, water is a(n)_________ molecule.

Which species in the following neutralization reaction are spectator ions? NaOH + HCl → H₂O + NaCl

Matter, Energy, and Measurement

Atomic Structure and Radioisotopes

Ionic and Covalent Compounds

Molecular Geometry, Polarity, and Intermolecular

Chemical Quantities and Introduction to Reactions

Chemical Reactions: Energy, Rates, and Equilibrium

Changes of State and Gas Laws

Mixtures, Solution Concentrations, and Diffusion

Introduction to Organic Chemistry:

Alcohols, Phenols, Thiols, Ethers, and Amines

The Carbonyl Containing Functional Groups

The Common Organic Reactions in Biochemistry

Carbohydrates: Structure and Function

Lipids: Structure and Function

Proteins: Structure and Function

Nucleotides and Nucleic Acids

Energy and Metabolism

Filters

Exam 9: Acids and Bases, Ph, and Buffers

What is the role of the kidney in maintaining acid-base homeostasis in the blood?

Select the choice that correctly states whether the substance is an acid or a base.

A conjugate acid-base pair is

What is the pH of a solution with a [H3O+] of 1.0 × 10-5 M?

A blood sample has a pH of 7.42.What is the concentration of hydronium in the sample?

Each circle is a sample of an aqueous acidic or basic solution.Which solution contains a weak acid?

Which condition could cause respiratory acidosis?

If the concentration of hydroxide ion in water is 1 × 10-4 M, the concentration of hydronium ion is ______ and there is more _____ in the solution.

Which strong acid is found in the body?

What is the pH of a urine sample with a hydronium concentration of 7.9 × 10-8?

Each circle is a sample of an aqueous acidic or basic solution.Which solution contains a strong base?

Which base is a strong base?

Adding an acid to pure water will change which of the following values: [H3O+], [OH-], and/or Kw?

The boxed species in the following reaction is

The concentration of H3O+ in a solution is 1 × 10-4 M.What is the concentration of hydroxide ion in this solution?

Which of the following equations is the correctly balanced equation for the neutralization reaction of aluminum hydroxide and HCl?

Which solution has the highest concentration of [OH-]?

Water can react as both an acid and a base, depending on its environment.Because of this characteristic, water is a(n)_________ molecule.

Which species in the following neutralization reaction are spectator ions? NaOH + HCl → H2O + NaCl

Matter, Energy, and Measurement

Atomic Structure and Radioisotopes

Ionic and Covalent Compounds

Molecular Geometry, Polarity, and Intermolecular

Chemical Quantities and Introduction to Reactions

Chemical Reactions: Energy, Rates, and Equilibrium

Changes of State and Gas Laws

Mixtures, Solution Concentrations, and Diffusion

Introduction to Organic Chemistry:

Alcohols, Phenols, Thiols, Ethers, and Amines

The Carbonyl Containing Functional Groups

The Common Organic Reactions in Biochemistry

Carbohydrates: Structure and Function

Lipids: Structure and Function

Proteins: Structure and Function

Nucleotides and Nucleic Acids

Energy and Metabolism

Filters

What is the pH of a solution with a [H₃O⁺] of 1.0 × 10^-5 M?

If the concentration of hydroxide ion in water is 1 × 10^-4 M, the concentration of hydronium ion is __ and there is more _ in the solution.

What is the pH of a urine sample with a hydronium concentration of 7.9 × 10^-8?

Adding an acid to pure water will change which of the following values: [H₃O⁺], [OH^-], and/or K_w?

The concentration of H₃O⁺ in a solution is 1 × 10^-4 M.What is the concentration of hydroxide ion in this solution?

Which solution has the highest concentration of [OH^-]?

Which species in the following neutralization reaction are spectator ions? NaOH + HCl → H₂O + NaCl