Question 1

Which is a weak base?

Accepted Answer

A)  NH3
B)  Ca(OH) 2
C)  Ba(OH) 2
D)  NaOH
E)  CH3COOHF) B) and E)
G) None of the above

Question 2

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)  11.11F) A) and B)
G) None of the above B

Question 3

Which is the strongest acid?

Accepted Answer

A)  HBrO4
B)  HBr
C)  HBrO2
D)  HBrO
E)  HBrO3F) A) and B)
G) A) and C)

Question 4

What is the conjugate base of NH3?

Accepted Answer

A)  NH2
B)  NH2+
C)  NH2−
D)  NH4
E)  NH4+F) C) and D)
G) A) and D)

Question 5

Which is the strongest acid?

Accepted Answer

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

Question 6

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 mLF) A) and E)
G) C) and D)

Question 7

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 MF) D) and E)
G) A) and B)

Question 8

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.F) A) and D)
G) A) and C)

Question 9

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 = 4.00F) B) and D)
G) A) and B)

Question 10

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 NaNO2F) A) and E)
G) A) and D)

Question 11

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 MF) None of the above
G) B) and C)

Question 12

Which is a strong base?

Accepted Answer

A)  LiOH
B)  CH3COOH
C)  NH3
D)  H3PO4
E)  HClO2F) D) and E)
G) All of the above

Question 13

What is the conjugate base of water?

Accepted Answer

A)  H3O+
B)  OH−
C)  H3O
D)  OH
E)  H2O2F) A) and B)
G) A) and C) B

Question 14

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+F) A) and B)
G) B) and E) B

Question 15

Which is present in all aqueous Brønsted acid solutions?

Accepted Answer

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

Question 16

Which is the strongest acid?

Accepted Answer

A)  HBrO3
B)  HClO
C)  HBrO2
D)  HBrO
E)  HClO3F) B) and C)
G) A) and E)

Question 17

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)  11.11F) All of the above
G) B) and C)

Question 18

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 MF) B) and D)
G) All of the above

Question 19

Which one of the following is a strong acid?

Accepted Answer

A)  H2CO3
B)  H2SO3
C)  H2SO4
D)  H3PO4
E)  CH3COOHF) A) and B)
G) A) and D)

Question 20

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.F) A) and B)
G) B) and D)

Exam 12: Acids and Bases

Which is a weak base?

Correct AnswerverifiedShow Answer

What is the pH of a 0.056 M HNO3 solution?

Correct AnswerverifiedB

Which is the strongest acid?

Correct AnswerverifiedShow Answer

What is the conjugate base of NH3?

Correct AnswerverifiedShow Answer

Which is the strongest acid?

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

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

Correct AnswerverifiedShow Answer

The substance (CH3CH2) 2NH is considered to be

Correct AnswerverifiedShow Answer

Which solution is the most acidic?

Correct AnswerverifiedShow Answer

Which pair of substances cannot form a buffered aqueous solution?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which is a strong base?

Correct AnswerverifiedShow Answer

What is the conjugate base of water?

Correct AnswerverifiedB

Identify the major ions present in an aqueous LiOH solution.

Correct AnswerverifiedB

Which is present in all aqueous Brønsted acid solutions?

Correct AnswerverifiedShow Answer

Which is the strongest acid?

Correct AnswerverifiedShow Answer

What is the pH of a 0.056 M HNO3 solution?

Correct AnswerverifiedShow Answer

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

A solution with a pH of 8.15 is

Correct AnswerverifiedShow Answer

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What is the pH of a 0.056 M HNO₃ solution?

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B

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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?

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

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B

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What is the pH of a 0.056 M HNO₃ solution?

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

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