Question 1

What is the H+ ion concentration in a 2.1 × 10−4 M Ca(OH) 2 solution?

Accepted Answer

A)  7.3 × 10−4 M
B)  4.2 × 10−4 M
C)  2.1 × 10−4 M
D)  2.4 × 10−11 M
E)  4.8 × 10−11 M

Question 2

Which one of the following is a strong acid?

Accepted Answer

A)  H2CO3
B)  H2SO3
C)  H2SO4
D)  H3PO4
E)  CH3COOH

Question 3

What is the pH of a 0.056 M HNO3 solution?

Accepted Answer

A)  0.056
B)  1.25
C)  12.75
D)  2.88
E)  11.11

Question 4

The substance (CH3CH2) 2NH is considered to be

Accepted Answer

A)  a weak acid.
B)  a weak base.
C)  a strong acid.
D)  a strong base.
E)  neither acidic nor basic.

Question 5

Which is the strongest acid?

Accepted Answer

A)  SO42−
B)  H2SO3
C)  H2SO4
D)  HSO4−
E)  HSO3−

Question 6

Which is present in all aqueous Brønsted acid solutions?

Accepted Answer

A)  H2
B)  H+
C)  OH-
D)  H2SO4
E)  Cl-

Question 7

What is [OH−] for a solution at 25°C that has [H3O+] = 2.35 × 10−3 M?

Accepted Answer

A)  4.26 × 10−5 M
B)  2.35 ×10−11 M
C)  4.26 × 10−12 M
D)  2.35 × 10−17 M
E)  2.35 ×10−3 M

Question 8

A solution with a pH of 8.15 is

Accepted Answer

A)  slightly acidic.
B)  very basic.
C)  neutral.
D)  very acidic.
E)  slightly basic.

Question 9

Which is the strongest acid?

Accepted Answer

A)  HBrO3
B)  HClO
C)  HBrO2
D)  HBrO
E)  HClO3

Question 10

Which is the strongest acid?

Accepted Answer

A)  HBrO4
B)  HBr
C)  HBrO2
D)  HBrO
E)  HBrO3

Question 11

What is the pH of a 0.056 M HNO3 solution?

Accepted Answer

A)  0.056
B)  1.25
C)  12.75
D)  2.88
E)  11.11 B

Question 12

What is the conjugate base of NH3?

Accepted Answer

A)  NH2
B)  NH2+
C)  NH2−
D)  NH4
E)  NH4+

Question 13

Which solution is the most acidic?

Accepted Answer

A)  pH = 1.00
B)  pH = 10.00
C)  pH = 5.00
D)  pH = 3.00
E)  pH = 4.00

Question 14

Which is a weak base?

Accepted Answer

A)  NH3
B)  Ca(OH) 2
C)  Ba(OH) 2
D)  NaOH
E)  CH3COOH

Question 15

What volume of a 0.442 M NaOH solution is needed to neutralize 65.0 mL of a 0.296 M solution of HNO3?

Accepted Answer

A)  8.71 mL
B)  21.8 mL
C)  43.5 mL
D)  87.1 mL
E)  174 mL

Question 16

Identify the major ions present in an aqueous LiOH solution.

Accepted Answer

A)  Li2+, O−, H−
B)  Li+, OH−
C)  LiO−, H+
D)  Li+, O2−, H+
E)  Li−, OH+ B

Question 17

Which is a strong base?

Accepted Answer

A)  LiOH
B)  CH3COOH
C)  NH3
D)  H3PO4
E)  HClO2

Question 18

What is the conjugate base of water?

Accepted Answer

A)  H3O+
B)  OH−
C)  H3O
D)  OH
E)  H2O2 B

Question 19

The pH of a Ba(OH) 2 solution is 10.00.What is the H+ ion concentration of this solution?

Accepted Answer

A)  4.0 × 10−11 M
B)  1.6 × 10−10 M
C)  1.3 × 10−5 M
D)  1.0 × 10−10 M
E)  10.00 M

Question 20

Which pair of substances cannot form a buffered aqueous solution?

Accepted Answer

A)  HCN and KCN
B)  NH3 and (NH4) 2SO4
C)  HNO3 and NaNO3
D)  HF and NaF
E)  HNO2 and NaNO2

Exam 12: Acids and Bases

What is the H+ ion concentration in a 2.1 × 10−4 M Ca(OH) 2 solution?

Correct AnswerverifiedShow Answer

Which one of the following is a strong acid?

Correct AnswerverifiedShow Answer

What is the pH of a 0.056 M HNO3 solution?

Correct AnswerverifiedShow Answer

The substance (CH3CH2) 2NH is considered to be

Correct AnswerverifiedShow Answer

Which is the strongest acid?

Correct AnswerverifiedShow Answer

Which is present in all aqueous Brønsted acid solutions?

Correct AnswerverifiedShow Answer

What is [OH−] for a solution at 25°C that has [H3O+] = 2.35 × 10−3 M?

Correct AnswerverifiedShow Answer

A solution with a pH of 8.15 is

Correct AnswerverifiedShow Answer

Which is the strongest acid?

Correct AnswerverifiedShow Answer

Which is the strongest acid?

Correct AnswerverifiedShow Answer

What is the pH of a 0.056 M HNO3 solution?

Correct AnswerverifiedB

What is the conjugate base of NH3?

Correct AnswerverifiedShow Answer

Which solution is the most acidic?

Correct AnswerverifiedShow Answer

Which is a weak base?

Correct AnswerverifiedShow Answer

What volume of a 0.442 M NaOH solution is needed to neutralize 65.0 mL of a 0.296 M solution of HNO3?

Correct AnswerverifiedShow Answer

Identify the major ions present in an aqueous LiOH solution.

Correct AnswerverifiedB

Which is a strong base?

Correct AnswerverifiedShow Answer

What is the conjugate base of water?

Correct AnswerverifiedB

The pH of a Ba(OH) 2 solution is 10.00.What is the H+ ion concentration of this solution?

Correct AnswerverifiedShow Answer

Which pair of substances cannot form a buffered aqueous solution?

Correct AnswerverifiedShow Answer

What is the H⁺ ion concentration in a 2.1 × 10⁻⁴ M Ca(OH) ₂ solution?

Correct Answer
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What is the pH of a 0.056 M HNO₃ solution?

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The substance (CH₃CH₂) ₂NH is considered to be

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What is [OH⁻] for a solution at 25°C that has [H₃O⁺] = 2.35 × 10⁻³ M?

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What is the pH of a 0.056 M HNO₃ solution?

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B

What is the conjugate base of NH₃?

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What volume of a 0.442 M NaOH solution is needed to neutralize 65.0 mL of a 0.296 M solution of HNO₃?

Correct Answer
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B

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B

The pH of a Ba(OH) ₂ solution is 10.00.What is the H⁺ ion concentration of this solution?

Correct Answer
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Correct Answer
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