Question 1

What is the conjugate base of water?

Accepted Answer

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

Question 2

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

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

Question 4

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

Question 5

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

Question 6

Which is present in all aqueous Brønsted acid solutions?

Accepted Answer

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

Question 7

Which one of the following is a strong acid?

Accepted Answer

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

Question 8

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 
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 9

Which is a weak base?

Accepted Answer

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

Question 10

Which is the strongest acid?

Accepted Answer

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

Question 11

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 
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 12

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

Question 13

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

Question 14

Which is the strongest acid?

Accepted Answer

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

Question 15

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 
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 16

Which is a strong base?

Accepted Answer

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

Question 17

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

Question 18

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

Question 19

What is the conjugate base of NH3?

Accepted Answer

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

Question 20

Which is the strongest acid?

Accepted Answer

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

What is the conjugate base of water?

Identify the major ions present in an aqueous LiOH solution.

What is the pH of a 0.056 M HNO₃ solution?

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

Which pair of substances cannot form a buffered aqueous solution?

Which is present in all aqueous Brønsted acid solutions?

Which one of the following is a strong acid?

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

Which is a weak base?

Which is the strongest acid?

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

A solution with a pH of 8.15 is

What is the pH of a 0.056 M HNO₃ solution?

Which is the strongest acid?

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

Which is a strong base?

Which solution is the most acidic?

The substance (CH₃CH₂)₂NH is considered to be

What is the conjugate base of NH₃?

Which is the strongest acid?

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Equilibrium

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Exam 12: Acids and Bases

What is the conjugate base of water?

Identify the major ions present in an aqueous LiOH solution.

What is the pH of a 0.056 M HNO3 solution?

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

Which pair of substances cannot form a buffered aqueous solution?

Which is present in all aqueous Brønsted acid solutions?

Which one of the following is a strong acid?

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

Which is a weak base?

Which is the strongest acid?

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

A solution with a pH of 8.15 is

What is the pH of a 0.056 M HNO3 solution?

Which is the strongest acid?

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

Which is a strong base?

Which solution is the most acidic?

The substance (CH3CH2)2NH is considered to be

What is the conjugate base of NH3?

Which is the strongest acid?

Atoms and Elements

Electrons and the Periodic Table

Compounds and Chemical Bonds

How Chemists Use Numbers

The Mole and Chemical Formulas

Molecular Shape

Solids, Liquids, and Phase Changes

Gases

Physical Properties of Solutions

Chemical Reactions and Chemical Equations

Using Balanced Chemical Equations

Equilibrium

Organic Chemistry

Biochemistry

Nuclear Chemistry

Electrochemistry

Filters

What is the pH of a 0.056 M HNO₃ solution?

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

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

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

What is the pH of a 0.056 M HNO₃ solution?

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

The substance (CH₃CH₂)₂NH is considered to be

What is the conjugate base of NH₃?