Question 1

What is the concentration of the hydroxide ions in an acidic solution?

Accepted Answer

A) 0.0 M B) 1.0 M C) 1.0 M D) > 1.0 M E) < 1.0 M A) 0.0 M B) 1.0 M C) 1.0 M D) > 1.0 M E) < 1.0 M

Question 2

A strong acid is one that is very concentrated.

Accepted Answer

A) True 
 B)False

Question 3

Acids produce H⁺ ions in solution.

Accepted Answer

A) True 
 B)False

Question 4

A Bronsted-Lowry acid is a proton donor.

Accepted Answer

A) True 
 B)False

Question 5

A buffer resists a change in pH by being able to react with an acid or a base.

Accepted Answer

A) True 
 B)False

Question 6

What is the conjugate base of H2O?

Accepted Answer

A)  O2- 
B)  H3O+ 
C) NaOH 
D) OH⁻ 
E) none of the above 
A)  O2- 
B)  H3O+ 
C) NaOH 
D) OH⁻ 
E) none of the above

Question 7

A buffer solution is all of the following EXCEPT:

Accepted Answer

A) a solution that resists a change in pH when a base is added. 
B) a solution that resists a change in pH when an acid is added. 
C) a solution that contains both a weak acid and its conjugate base. 
D) a solution that regulates pH because it is such a strong acid or base. 
E) All of the above are true. 
A) a solution that resists a change in pH when a base is added. 
B) a solution that resists a change in pH when an acid is added. 
C) a solution that contains both a weak acid and its conjugate base. 
D) a solution that regulates pH because it is such a strong acid or base. 
E) All of the above are true.

Question 8

The salt that forms due to neutralization of phosphoric acid by calcium hydroxide has the formula Ca3P2.

Accepted Answer

A) True 
 B)False

Question 9

A pH of 7 is equivalent to a pOH of 7.

Accepted Answer

A) True 
 B)False

Question 10

What is the conjugate acid of OH⁻?

Accepted Answer

A)  O2- 
B)  H2O 
C) NaOH 
D) OH⁻ 
E) none of the above 
A)  O2- 
B)  H2O 
C) NaOH 
D) OH⁻ 
E) none of the above

Question 11

Ammonia (NH3)ionizes in water to form a basic solution.What is the concentration of OH- ions in a 0.75 M NH3 solution?

Accepted Answer

A) 0.75 M 
B)  0.75 M 
D) No OH- ions exist in a solution of NH3. 
E) none of the above 
A) 0.75 M 
B)  0.75 M 
D) No OH- ions exist in a solution of NH3. 
E) none of the above

Question 12

The Bronsted-Lowry definition of a base 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 
A) a proton donor. 
B) a proton acceptor. 
C) produces H⁺ in solution. 
D) produces OH⁻ in solution. 
E) none of the above

Question 13

A solution that has a pH of 8.5 is considered a weak base.

Accepted Answer

A) True 
 B)False

Question 14

What is the value of the ion product constant for water ( Kw )?

Accepted Answer

A) 0.0 
B) 1.0   
C) 1.0   
D) 1.0   
E) 1.0   
A) 0.0 
B) 1.0   
C) 1.0   
D) 1.0   
E) 1.0

Question 15

In which solution is the [H3O+] less than 0.250 M?

Accepted Answer

A) 0.250 M HC2H3O2 (aq) 
B) 0.250 M HF (aq) 
C) 0.250 M HCO2 (aq) 
D) all of these 
E) none of these 
A) 0.250 M HC2H3O2 (aq) 
B) 0.250 M HF (aq) 
C) 0.250 M HCO2 (aq) 
D) all of these 
E) none of these

Question 16

Consider a 1.0 X 10-7 M HCl solution and a 1.0 x10-7 M NaOH solution.Which statement below is true?

Accepted Answer

A) The HCl solution is acidic. 
B) The NaOH solution is basic. 
C) Only the HCl solution is neutral. 
D) Only the NaOH solution is neutral. 
E) Both of these solutions are neutral. 
A) The HCl solution is acidic. 
B) The NaOH solution is basic. 
C) Only the HCl solution is neutral. 
D) Only the NaOH solution is neutral. 
E) Both of these solutions are neutral.

Question 17

What is the concentration of H⁺ in 0.50 M hydroiodic acid?

Accepted Answer

A) 0.50 M 
B) 1.0 M 
C) <0.50 M 
D) 1.50 M 
E) none of the above 
A) 0.50 M 
B) 1.0 M 
C) <0.50 M 
D) 1.50 M 
E) none of the above

Question 18

The pH of a 0.0001 M NaOH solution is 4.

Accepted Answer

A) True 
 B)False

Question 19

In the following reaction: HCO3- (aq)+ H2O (aq)→ H2CO3 (aq)+ OH- (aq)

Accepted Answer

A) HCO3- is an acid and H2CO3 is its conjugate base. 
B) H2O is an acid and OH- is its conjugate base. 
C) HCO3- is an acid and OH- is its conjugate base. 
D) H2O is an acid and H2CO3 is its conjugate base. 
E) H2O is an acid and HCO3- is its conjugate base. 
A) HCO3- is an acid and H2CO3 is its conjugate base. 
B) H2O is an acid and OH- is its conjugate base. 
C) HCO3- is an acid and OH- is its conjugate base. 
D) H2O is an acid and H2CO3 is its conjugate base. 
E) H2O is an acid and HCO3- is its conjugate base.

Question 20

Which solution below has the highest concentration of hydroxide ions?

Accepted Answer

A) pH = 3.21 
B) pH = 12.49 
C) pH = 7.00 
D) pH = 10.12 
E) pH = 7.93 
A) pH = 3.21 
B) pH = 12.49 
C) pH = 7.00 
D) pH = 10.12 
E) pH = 7.93

What is the concentration of the hydroxide ions in an acidic solution?

A strong acid is one that is very concentrated.

Acids produce H⁺ ions in solution.

A Bronsted-Lowry acid is a proton donor.

A buffer resists a change in pH by being able to react with an acid or a base.

What is the conjugate base of H₂O?

A buffer solution is all of the following EXCEPT:

The salt that forms due to neutralization of phosphoric acid by calcium hydroxide has the formula Ca₃P₂.

A pH of 7 is equivalent to a pOH of 7.

What is the conjugate acid of OH⁻?

Ammonia (NH₃)ionizes in water to form a basic solution.What is the concentration of OH^- ions in a 0.75 M NH₃ solution?

The Bronsted-Lowry definition of a base is:

A solution that has a pH of 8.5 is considered a weak base.

What is the value of the ion product constant for water ( K_w )?

In which solution is the [H₃O⁺] less than 0.250 M?

Consider a 1.0 X 10^-7 M HCl solution and a 1.0 x10^-7 M NaOH solution.Which statement below is true?

What is the concentration of H⁺ in 0.50 M hydroiodic acid?

The pH of a 0.0001 M NaOH solution is 4.

In the following reaction: HCO₃^-(aq)+ H₂O (aq)→ H₂CO₃(aq)+ OH^-(aq)

Which solution below has the highest concentration of hydroxide ions?

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Exam 14: Acids and Bases

What is the concentration of the hydroxide ions in an acidic solution?

A strong acid is one that is very concentrated.

Acids produce H⁺ ions in solution.

A Bronsted-Lowry acid is a proton donor.

A buffer resists a change in pH by being able to react with an acid or a base.

What is the conjugate base of H2O?

A buffer solution is all of the following EXCEPT:

The salt that forms due to neutralization of phosphoric acid by calcium hydroxide has the formula Ca3P2.

A pH of 7 is equivalent to a pOH of 7.

What is the conjugate acid of OH⁻?

Ammonia (NH3)ionizes in water to form a basic solution.What is the concentration of OH- ions in a 0.75 M NH3 solution?

The Bronsted-Lowry definition of a base is:

A solution that has a pH of 8.5 is considered a weak base.

What is the value of the ion product constant for water ( Kw )?

In which solution is the [H3O+] less than 0.250 M?

Consider a 1.0 X 10-7 M HCl solution and a 1.0 x10-7 M NaOH solution.Which statement below is true?

What is the concentration of H⁺ in 0.50 M hydroiodic acid?

The pH of a 0.0001 M NaOH solution is 4.

In the following reaction: HCO3- (aq)+ H2O (aq)→ H2CO3 (aq)+ OH- (aq)

Which solution below has the highest concentration of hydroxide ions?

The Chemical World

Measurement and Problem Solving

Matter and Energy

Atoms and Elements

Molecules and Compounds

Chemical Composition

Chemical Reactions

Quantities in Chemical Reactions

Electrons in Atoms and the Periodic Table

Chemical Bonding

Gases

Liquids, solids, and Intermolecular Forces

Solutions

Chemical Equilibrium

Oxidation and Reduction

Radioactivity and Nuclear Chemistry

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Biochemistry

Filters

What is the conjugate base of H₂O?

The salt that forms due to neutralization of phosphoric acid by calcium hydroxide has the formula Ca₃P₂.

Ammonia (NH₃)ionizes in water to form a basic solution.What is the concentration of OH^- ions in a 0.75 M NH₃ solution?

What is the value of the ion product constant for water ( K_w )?

In which solution is the [H₃O⁺] less than 0.250 M?

Consider a 1.0 X 10^-7 M HCl solution and a 1.0 x10^-7 M NaOH solution.Which statement below is true?

In the following reaction: HCO₃^-(aq)+ H₂O (aq)→ H₂CO₃(aq)+ OH^-(aq)