Question 1

A buffer is a solution that tends to maintain a neutral pH.

Accepted Answer

A) True 
 B)False  False

Question 2

In a titration experiment, a student used 24.13 mL of 0.111 M sodium hydroxide to neutralize 20.00 mL of a hydrochloric acid solution. What was the molarity of the acid solution?

Accepted Answer

0.134 M

Question 3

Acid rain has a

Accepted Answer

A)  pH  7. 
C)  pH < 6.2. 
D)  pH < 2.6. 
A)  pH  7. 
C)  pH < 6.2. 
D)  pH < 2.6. C

Question 4

The name given to an aqueous solution of HClO₃ is

Accepted Answer

A)  chlorous acid. 
B)  hypochlorous acid. 
C)  chloric acid. 
D)  hydrochloric acid. 
E)  hypochloric acid. 
A)  chlorous acid. 
B)  hypochlorous acid. 
C)  chloric acid. 
D)  hydrochloric acid. 
E)  hypochloric acid.

Question 5

In a buffer system of HF and its salt, NaF,

Accepted Answer

A)  the HF neutralizes added acid. 
B)  the HF neutralizes added base. 
C)  the HF is not necessary. 
D)  the F- neutralizes added H₂O. 
E)  the F- neutralizes added base. 
A)  the HF neutralizes added acid. 
B)  the HF neutralizes added base. 
C)  the HF is not necessary. 
D)  the F- neutralizes added H₂O. 
E)  the F- neutralizes added base.

Question 6

What is the pH of a buffer made with 0.10 M acetic acid and 0.01 M sodium acetate?

Accepted Answer

The answer of What is the pH of a buffer...

Question 7

A solution with a pH of 4.0 is more acidic than a solution with a pH of 6.0.

Accepted Answer

A) True 
 B)False

Question 8

HCl is hydrochlorous acid.

Accepted Answer

A) True 
 B)False

Question 9

The conjugate acid of HSO₄- is

Accepted Answer

A)  SO₄2-. 
B)  HSO₄. 
C)  H₂SO₄. 
D)  H₂SO₄-. 
E)  HSO₃-. 
A)  SO₄2-. 
B)  HSO₄. 
C)  H₂SO₄. 
D)  H₂SO₄-. 
E)  HSO₃-.

Question 10

Which one of the following is characteristic of a base?

Accepted Answer

A)  produces H30+ in water 
B)  has a sour taste 
C)  has a slippery, soapy feel 
D)  turns blue litmus red 
E)  is insoluble in water 
A)  produces H30+ in water 
B)  has a sour taste 
C)  has a slippery, soapy feel 
D)  turns blue litmus red 
E)  is insoluble in water

Question 11

In any water solution, [H3O+] [OH-]= 1.0 × 10-7.

Accepted Answer

A) True 
 B)False

Question 12

If an acid has a Ka << 1, is it classified as a weak acid or a strong acid?

Accepted Answer

Question 13

What is the [H3O+] in a solution with [OH-] = 1 × 10-12 M?

Accepted Answer

A)  1 × 10-12 M 
B)  1 × 102 M 
C)  1 × 10-7 M 
D)  1 × 10-8 M 
E)  1 × 10-2 M 
A)  1 × 10-12 M 
B)  1 × 102 M 
C)  1 × 10-7 M 
D)  1 × 10-8 M 
E)  1 × 10-2 M

Question 14

The conjugate base of HCl is Cl-.

Accepted Answer

A) True 
 B)False

Question 15

What is the pH of a solution with [OH-] = 1 × 10-4 M?

Accepted Answer

A)  10.0 
B)  -10.0 
C)  4.0 
D)  -4.0 
E)  1.0 × 10-10 
A)  10.0 
B)  -10.0 
C)  4.0 
D)  -4.0 
E)  1.0 × 10-10

Question 16

What is the name of the medical condition of an asthmatic patient with a blood pH of 7.30?

Accepted Answer

A)  respiratory acidosis 
B)  respiratory alkalosis 
C)  metabolic acidosis 
D)  metabolic alkalosis 
E)  diabetes mellitus 
A)  respiratory acidosis 
B)  respiratory alkalosis 
C)  metabolic acidosis 
D)  metabolic alkalosis 
E)  diabetes mellitus

Question 17

In a sulfuric acid solution, where the [H3O+] is 0.01 M, what is the pH?

Accepted Answer

A)  pH = 12.0 
B)  pH = 2.0 
C)  pH = 3.0 
D)  pH = 11.0 
E)  pH = 5.0 
A)  pH = 12.0 
B)  pH = 2.0 
C)  pH = 3.0 
D)  pH = 11.0 
E)  pH = 5.0

Question 18

What is the molarity of a KOH solution if 25.0 mL neutralizes 35.0 mL of a 0.200 M HCl solution?

Accepted Answer

A)  0.267 M 
B)  0.143 M 
C)  0.200 M 
D)  0.280 M 
E)  0.100 M 
A)  0.267 M 
B)  0.143 M 
C)  0.200 M 
D)  0.280 M 
E)  0.100 M

Question 19

What is the pH of a solution with [H3O+] = 1 × 10-9 M?

Accepted Answer

A)  1.0 × 10-5 M 
B)  -9.0 
C)  5.0 
D)  -5.0 
E)  9.0 
A)  1.0 × 10-5 M 
B)  -9.0 
C)  5.0 
D)  -5.0 
E)  9.0

Question 20

Which of the following is a buffer system?

Accepted Answer

A)  NaCl and NaNO₃ 
B)  HCl and NaOH 
C)  H₂CO₃ and KHCO₃ 
D)  NaCl and NaOH 
E)  H₂O and HCl 
A)  NaCl and NaNO₃ 
B)  HCl and NaOH 
C)  H₂CO₃ and KHCO₃ 
D)  NaCl and NaOH 
E)  H₂O and HCl

Exam 10: Acids and Bases

A buffer is a solution that tends to maintain a neutral pH.

In a titration experiment, a student used 24.13 mL of 0.111 M sodium hydroxide to neutralize 20.00 mL of a hydrochloric acid solution. What was the molarity of the acid solution?

Acid rain has a

The name given to an aqueous solution of HClO₃ is

In a buffer system of HF and its salt, NaF,

What is the pH of a buffer made with 0.10 M acetic acid and 0.01 M sodium acetate?

A solution with a pH of 4.0 is more acidic than a solution with a pH of 6.0.

HCl is hydrochlorous acid.

The conjugate acid of HSO₄- is

Which one of the following is characteristic of a base?

In any water solution, [H3O+] [OH-]= 1.0 × 10-7.

If an acid has a Ka << 1, is it classified as a weak acid or a strong acid?

What is the [H3O+] in a solution with [OH-] = 1 × 10-12 M?

The conjugate base of HCl is Cl-.

What is the pH of a solution with [OH-] = 1 × 10-4 M?

What is the name of the medical condition of an asthmatic patient with a blood pH of 7.30?

In a sulfuric acid solution, where the [H3O+] is 0.01 M, what is the pH?

What is the molarity of a KOH solution if 25.0 mL neutralizes 35.0 mL of a 0.200 M HCl solution?

What is the pH of a solution with [H3O+] = 1 × 10-9 M?

Which of the following is a buffer system?

Chemistry and Measurements

Energy and Matter

Atoms and Elements

Nuclear Chemistry

Compounds and Their Bonds

Chemical Reactions and Quantities

Gases

Solutions

Reaction Rates and Chemical Equilibrium

Introduction to Organic Chemistry: Alkanes

Alkenes, Alkynes, and Aromatic Compounds

Alcohols, Phenols, Thiols, and Ethers

Aldehydes, Ketones, and Chiral Molecules

Carbohydrates

Carboxylic Acids and Esters

Lipids

Amines and Amides

Amino Acids and Proteins

Enzymes and Vitamins

Nucleic Acids and Protein Synthesis

Metabolic Pathways for Carbohydrates

Metabolism and Energy Production

Metabolic Pathways for Lipids and Amino Acids

Filters

In any water solution, [H₃O+] [OH-]= 1.0 × 10^-7.

If an acid has a K_a<< 1, is it classified as a weak acid or a strong acid?

What is the [H₃O+] in a solution with [OH-] = 1 × 10^-12 M?

What is the pH of a solution with [OH-] = 1 × 10^-4 M?

In a sulfuric acid solution, where the [H₃O+] is 0.01 M, what is the pH?

What is the pH of a solution with [H₃O+] = 1 × 10^-9 M?