Question 1

A weak acid is a dilute acid that is not very powerful.

Accepted Answer

A) True 
 B)False

Question 2

What is the pH of a solution that has a [ OH- ] = 0.0033 M?

Accepted Answer

A)  2.48
B)  7.0033
C)  11.52
D)  3.3
E)  none of the above

Question 3

Substances that can act both as an acid and as a base are called:

Accepted Answer

A)  neutral.
B)  buffers.
C)  indicators.
D)  amphoteric.
E)  none of these

Question 4

In a solution that has a pH = 7.0:

Accepted Answer

A)  [H3O+] > [OH-]
B)  [H3O+] -]
C)  [H3O+] = [OH-]
D)  [H3O+] + [OH-] = Kw
E)  none of the above

Question 5

Which of the following acids is a monoprotic,strong acid?

Accepted Answer

A)  sulfuric acid
B)  phosphoric acid
C)  hydrobromic acid
D)  carbonic acid
E)  none of the above

Question 6

A neutralization reaction between an acid and sodium hydroxide formed water and the salt named sodium sulfate.What was the formula of the acid that was neutralized?

Accepted Answer

A)  H2S
B)  H2SO4
C)  HCl
D)  Na2SO4
E)  none of the above

Question 7

Which solution below would be considered the most acidic?

Accepted Answer

A)  2.9 × 10 -4 M HCl
B)  4.5 × 10 -5 M HNO3
C)  1.0 × 10 -7 M NaCl
D)  1.5 × 10 -2 M KOH
E)  none of the above

Question 8

Which of the following acids is a diprotic,weak acid?

Accepted Answer

A)  sulfuric acid
B)  phosphoric acid
C)  hydrobromic acid
D)  carbonic acid
E)  none of the above

Question 9

What is the [H⁺] in a solution that has a pH of 3.35?

Accepted Answer

A)  1 ×  M
B)  2.2 ×  M
C)  4.5 ×  M
D)  3.35 ×  M
E)  none of the above

Question 10

H2SO3 and H2SO4 are considered a conjugate acid-base pair.

Accepted Answer

A) True 
 B)False

Question 11

NH4+ and NH3 are considered a conjugate acid-base conjugate pair.

Accepted Answer

A) True 
 B)False

Question 12

The pH of a solution is 5.00.Which of the following is TRUE about the solution?

Accepted Answer

A)  Its [H3O+] is 1.0 × 10-9 M
B)  Its [H3O+] is 1.0 × 10-5 M
C)  Its [H3O+] is 1.0 × 105 M
D)  It is more acidic than a solution whose pH is 4.00.
E)  none of the above

Question 13

The Bronsted-Lowry definition of an acid is:

Accepted Answer

A)  a proton donor.
B)  a proton acceptor.
C)  produces H⁺ in solution.
D)  produces OH⁻ in solution.
E)  none of the above

Question 14

The equation HCl (aq)+ H2O (l)↔ H3O+ (aq)+ Cl- (aq)properly depicts the behavior of hydrochloric acid in water.

Accepted Answer

A) True 
 B)False

Question 15

What is the [OH-] in a solution that has a pOH of 9.65?

Accepted Answer

A)  4.5 × -] in a solution that has a pOH of 9.65? 
A)  4.5 ×   M 
B)  4.5 ×   M 
C)  9.8 ×   M 
D)  2.2 ×   M 
E)  none of the above" class="answers-bank-image d-inline" rel="preload" > M
B)  4.5 × -] in a solution that has a pOH of 9.65? 
A)  4.5 ×   M 
B)  4.5 ×   M 
C)  9.8 ×   M 
D)  2.2 ×   M 
E)  none of the above" class="answers-bank-image d-inline" rel="preload" > M
C)  9.8 × -] in a solution that has a pOH of 9.65? 
A)  4.5 ×   M 
B)  4.5 ×   M 
C)  9.8 ×   M 
D)  2.2 ×   M 
E)  none of the above" class="answers-bank-image d-inline" rel="preload" > M
D)  2.2 × -] in a solution that has a pOH of 9.65? 
A)  4.5 ×   M 
B)  4.5 ×   M 
C)  9.8 ×   M 
D)  2.2 ×   M 
E)  none of the above" class="answers-bank-image d-inline" rel="preload" > M
E)  none of the above

Question 16

A 100 mL sample of 4.0 M H2SO4 could be neutralized by 100 mL of 4.0 M NH3.

Accepted Answer

A) True 
 B)False

Question 17

A 35.0 mL sample of 0.225 M HBr was titrated with 42.3 mL of KOH.What is the concentration of the KOH?

Accepted Answer

A)  0.157 M
B)  0.303 M
C)  0.272 M
D)  0.186 M
E)  none of the above

Question 18

When an acid reacts with a metal,what is one of the usual products?

Accepted Answer

A)  water
B)  salt
C)  carbon dioxide
D)  hydrogen gas
E)  none of the above

Question 19

A substance that acts as an acid OR a base is called:

Accepted Answer

A)  isoprotic.
B)  a salt.
C)  amphoteric.
D)  hydrophillic.
E)  none of the above

Question 20

If the pH of an aqueous solution changed from 9.10 to 4.67,what happened to the hydronium ion concentration?

Accepted Answer

A)  It decreased.
B)  It became zero.
C)  It became less than zero.
D)  It increased.
E)  none of the above

Exam 14: Acids and Bases

Substances that can act both as an acid and as a base are called:

Correct AnswerverifiedShow Answer

Which of the following acids is a monoprotic,strong acid?

Correct AnswerverifiedShow Answer

The Bronsted-Lowry definition of an acid is:

Correct AnswerverifiedShow Answer

If the pH of an aqueous solution changed from 9.10 to 4.67,what happened to the hydronium ion concentration?

Correct AnswerverifiedShow Answer

When an acid reacts with a metal,what is one of the usual products?

Correct AnswerverifiedShow Answer

NH4+ and NH3 are considered a conjugate acid-base conjugate pair.

Correct AnswerverifiedShow Answer

H2SO3 and H2SO4 are considered a conjugate acid-base pair.

Correct AnswerverifiedShow Answer

A weak acid is a dilute acid that is not very powerful.

Correct AnswerverifiedShow Answer

The equation HCl (aq)+ H2O (l)↔ H3O+ (aq)+ Cl- (aq)properly depicts the behavior of hydrochloric acid in water.

Correct AnswerverifiedShow Answer

A substance that acts as an acid OR a base is called:

Correct AnswerverifiedShow Answer

What is the [H⁺] in a solution that has a pH of 3.35?

Correct AnswerverifiedShow Answer

What is the [OH-] in a solution that has a pOH of 9.65?

Correct AnswerverifiedShow Answer

The pH of a solution is 5.00.Which of the following is TRUE about the solution?

Correct AnswerverifiedShow Answer

Which solution below would be considered the most acidic?

Correct AnswerverifiedShow Answer

In a solution that has a pH = 7.0:

Correct AnswerverifiedShow Answer

A neutralization reaction between an acid and sodium hydroxide formed water and the salt named sodium sulfate.What was the formula of the acid that was neutralized?

Correct AnswerverifiedShow Answer

A 35.0 mL sample of 0.225 M HBr was titrated with 42.3 mL of KOH.What is the concentration of the KOH?

Correct AnswerverifiedShow Answer

A 100 mL sample of 4.0 M H2SO4 could be neutralized by 100 mL of 4.0 M NH3.

Correct AnswerverifiedShow Answer

Which of the following acids is a diprotic,weak acid?

Correct AnswerverifiedShow Answer

What is the pH of a solution that has a [ OH- ] = 0.0033 M?

Correct AnswerverifiedShow Answer

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NH₄⁺ and NH₃ are considered a conjugate acid-base conjugate pair.

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H₂SO₃ and H₂SO₄ are considered a conjugate acid-base pair.

Correct Answer
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The equation HCl (aq)+ H₂O (l)↔ H₃O⁺ (aq)+ Cl^-(aq)properly depicts the behavior of hydrochloric acid in water.

Correct Answer
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What is the [OH^-] in a solution that has a pOH of 9.65?

Correct Answer
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A 100 mL sample of 4.0 M H₂SO₄ could be neutralized by 100 mL of 4.0 M NH₃.

Correct Answer
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What is the pH of a solution that has a [ OH^- ] = 0.0033 M?

Correct Answer
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