Question 1

When fluoride ion, F-, reacts with water, what are the products?

Accepted Answer

A) H+(aq) and OH-(aq) 
B) F+(aq) and OH-(aq) 
C) F+(aq) and H2O(aq) 
D) HF(aq) and H-(aq) 
E) HF(aq) and OH-(aq) 
A) H+(aq) and OH-(aq) 
B) F+(aq) and OH-(aq) 
C) F+(aq) and H2O(aq) 
D) HF(aq) and H-(aq) 
E) HF(aq) and OH-(aq)

Question 2

Given an OH- concentration of 0.10 M, calculate the H3O+ concentration, and then identify the solution as acidic, basic, or neutral.

Accepted Answer

A) [H3O+] = 1.0 x 10-7, neutral 
B) [H3O+] = 1.0 x 10-1, acidic 
C) [H3O+] = 1.0 x 10-13, acidic 
D) [H3O+] = 1.0 x 10-13, basic 
E) [H3O+] = 1.0 x 10-1, basic 
A) [H3O+] = 1.0 x 10-7, neutral 
B) [H3O+] = 1.0 x 10-1, acidic 
C) [H3O+] = 1.0 x 10-13, acidic 
D) [H3O+] = 1.0 x 10-13, basic 
E) [H3O+] = 1.0 x 10-1, basic

Question 3

Calculate the pOH of a solution that has [OH-] = 5.9 x 10-5 M.

Accepted Answer

A) pOH = 5.90 
B) pOH = 5.00 
C) pOH = 4.23 
D) pOH = 5.59 
E) pOH = 9.77 
A) pOH = 5.90 
B) pOH = 5.00 
C) pOH = 4.23 
D) pOH = 5.59 
E) pOH = 9.77

Question 4

Calculate the pH of a solution that has [OH-] = 3.1 x 10-8 M.

Accepted Answer

A) pH = 3.10 
B) pH = 8.00 
C) pH = 7.51 
D) pH = 3.18 
E) pH = 6.49 
A) pH = 3.10 
B) pH = 8.00 
C) pH = 7.51 
D) pH = 3.18 
E) pH = 6.49

Question 5

All of the following species are weak bases except:

Accepted Answer

A) NH3(aq) 
B) Na2CO3(aq) 
C) KF(aq) 
D) CH3NH2(aq) 
E) NH4Cl(aq) 
A) NH3(aq) 
B) Na2CO3(aq) 
C) KF(aq) 
D) CH3NH2(aq) 
E) NH4Cl(aq)

Question 6

List the species present in order of increasing concentration in a 0.1 M solution of H2Se.

Accepted Answer

A) H2Se - 2-  
B) H2Se 2- -  
C) Se2- - 2Se 
D) HSe- 2- 2Se 
E) Se2- 2Se -  
A) H2Se - 2-  
B) H2Se 2- -  
C) Se2- - 2Se 
D) HSe- 2- 2Se 
E) Se2- 2Se -

Question 7

Calculate the pH of a solution that has [OH-] = 5.2 x 10-7 M.

Accepted Answer

A) pH = 5.20 
B) pH = 7.00 
C) pH = 6.28 
D) pH = 5.27 
E) pH = 7.72 
A) pH = 5.20 
B) pH = 7.00 
C) pH = 6.28 
D) pH = 5.27 
E) pH = 7.72

Question 8

Calculate the pOH of a solution that has [OH-] = 3.1 x 10-8 M.

Accepted Answer

A) pOH = 3.10 
B) pOH = 8.00 
C) pOH = 7.51 
D) pOH = 3.18 
E) pOH = 6.49 
A) pOH = 3.10 
B) pOH = 8.00 
C) pOH = 7.51 
D) pOH = 3.18 
E) pOH = 6.49

Question 9

The symbol In- can be used to represent the base form of an indicator.

Accepted Answer

A) True 
 B)False

Question 10

The substance NH3(aq) is:

Accepted Answer

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

Question 11

Calculate the pOH of a solution that has [H3O+] = 3.1 x 10-8 M.

Accepted Answer

A) pOH = 3.10 
B) pOH = 6.49 
C) pOH = 7.51 
D) pOH = 3.18 
E) pOH = 8.00 
A) pOH = 3.10 
B) pOH = 6.49 
C) pOH = 7.51 
D) pOH = 3.18 
E) pOH = 8.00

Question 12

Given 0.10 M solutions of the following acids, which contains the highest concentration of H3O+?

Accepted Answer

A) HF, Ka = 6.3 x 10-4  
B) HCN, Ka = 6.2 x 10-10  
C) HOCl, Ka = 4.0 x 10-8  
D) CH3CO2H, Ka = 1.8 x 10-5  
E) HCO2H, Ka = 1.8 x 10-4  
A) HF, Ka = 6.3 x 10-4  
B) HCN, Ka = 6.2 x 10-10  
C) HOCl, Ka = 4.0 x 10-8  
D) CH3CO2H, Ka = 1.8 x 10-5  
E) HCO2H, Ka = 1.8 x 10-4

Question 13

The conjugate acid of H2PO4- is:

Accepted Answer

A) HPO42-  
B) H2PO3-  
C) H3PO4  
D) PO43-  
E) H3PO3  
A) HPO42-  
B) H2PO3-  
C) H3PO4  
D) PO43-  
E) H3PO3

Question 14

Given an H3O+ concentration of 1.0 x 10-4 M, calculate the OH- concentration, and then identify the solution as acidic, basic, or neutral.

Accepted Answer

A) [OH-] = 1.0 x 10-7, neutral 
B) [OH-] = 1.0 x 10-4, acidic 
C) [OH-] = 1.0 x 10-10, acidic 
D) [OH-] = 1.0 x 10-10, basic 
E) [OH-] = 1.0 x 10-4, basic 
A) [OH-] = 1.0 x 10-7, neutral 
B) [OH-] = 1.0 x 10-4, acidic 
C) [OH-] = 1.0 x 10-10, acidic 
D) [OH-] = 1.0 x 10-10, basic 
E) [OH-] = 1.0 x 10-4, basic

Question 15

Select the pair that consists of an acid and its conjugate base in that order.

Accepted Answer

A) NH3/NH4+  
B) CO32-/HCO3-  
C) H2CO3/HCO3-  
D) HPO42-/H3PO4  
E) CO32-/ CO22-  
A) NH3/NH4+  
B) CO32-/HCO3-  
C) H2CO3/HCO3-  
D) HPO42-/H3PO4  
E) CO32-/ CO22-

Question 16

If the pH of a certain soft drink is 3.60, what is the H3O+ concentration in the soft drink?

Accepted Answer

A) 3.6 M 
B) 2.5 x 10-3 M 
C) 2.5 x 10-5 M 
D) 2.5 x 10-4 M 
E) 10.M 
A) 3.6 M 
B) 2.5 x 10-3 M 
C) 2.5 x 10-5 M 
D) 2.5 x 10-4 M 
E) 10.M

Question 17

Which of the following is an amphoteric substance?

Accepted Answer

A) NaOH 
B) LiCl 
C) CsBr 
D) H2O 
E) CH4  
A) NaOH 
B) LiCl 
C) CsBr 
D) H2O 
E) CH4

Question 18

Select the two Brønsted-Lowry acids in the following equation: HNO2(aq) + H2O(l) ⇌ NO2-(aq) + H3O+(aq)

Accepted Answer

A) HNO2 and H2O 
B) HNO2 and NO2-  
C) HNO2 and H3O+  
D) H2O and H3O+  
E) NO2- and H3O+  
A) HNO2 and H2O 
B) HNO2 and NO2-  
C) HNO2 and H3O+  
D) H2O and H3O+  
E) NO2- and H3O+

Question 19

The H2PO4- ion is amphoteric.What are the conjugate acid and conjugate base of H2PO4-?

Accepted Answer

A)    
B)    
C)    
D)    
E)    
A)    
B)    
C)    
D)    
E)

Question 20

If the pH of a blood sample is 7.60, what is the H3O+ concentration in the blood?

Accepted Answer

A) 7.6 M 
B) 2.5 x 10-8 M 
C) 2.5 x 10-7 M 
D) 2.5 x 10-9 M 
E) 6.4 M 
A) 7.6 M 
B) 2.5 x 10-8 M 
C) 2.5 x 10-7 M 
D) 2.5 x 10-9 M 
E) 6.4 M

When fluoride ion, F^-, reacts with water, what are the products?

Given an OH^- concentration of 0.10 M, calculate the H₃O⁺concentration, and then identify the solution as acidic, basic, or neutral.

Calculate the pOH of a solution that has [OH^-] = 5.9 x 10^-5M.

Calculate the pH of a solution that has [OH^-] = 3.1 x 10^-8M.

All of the following species are weak bases except:

List the species present in order of increasing concentration in a 0.1 M solution of H₂Se.

Calculate the pH of a solution that has [OH^-] = 5.2 x 10^-7M.

Calculate the pOH of a solution that has [OH^-] = 3.1 x 10^-8M.

The symbol In^- can be used to represent the base form of an indicator.

The substance NH₃(aq) is:

Calculate the pOH of a solution that has [H₃O⁺] = 3.1 x 10^-8M.

Given 0.10 M solutions of the following acids, which contains the highest concentration of H₃O⁺?

The conjugate acid of H₂PO₄^- is:

Given an H₃O⁺ concentration of 1.0 x 10^-4 M, calculate the OH^-concentration, and then identify the solution as acidic, basic, or neutral.

Select the pair that consists of an acid and its conjugate base in that order.

If the pH of a certain soft drink is 3.60, what is the H₃O⁺ concentration in the soft drink?

Which of the following is an amphoteric substance?

Select the two Brønsted-Lowry acids in the following equation: HNO₂(aq) + H₂O(l) ⇌ NO₂^-(aq) + H₃O⁺(aq)

The H₂PO₄^- ion is amphoteric.What are the conjugate acid and conjugate base of H₂PO₄^-?

If the pH of a blood sample is 7.60, what is the H₃O⁺ concentration in the blood?

Matter and Energy

Atoms, Ions, and the Periodic Table

Chemical Compounds

Chemical Composition

Chemical Reactions and Equations

Quantities in Chemical Reactions

Electron Structure of the Atom

Chemical Bonding

The Gaseous State

The Liquid and Solid States

Solutions

Reaction Rates and Chemical Equilibrium

Oxidation-Reduction Reactions

Nuclear Chemistry

Organic Chemistry

Biochemistry

Filters

Exam 13: Acids and Bases

When fluoride ion, F-, reacts with water, what are the products?

Given an OH- concentration of 0.10 M, calculate the H3O+ concentration, and then identify the solution as acidic, basic, or neutral.

Calculate the pOH of a solution that has [OH-] = 5.9 x 10-5 M.

Calculate the pH of a solution that has [OH-] = 3.1 x 10-8 M.

All of the following species are weak bases except:

List the species present in order of increasing concentration in a 0.1 M solution of H2Se.

Calculate the pH of a solution that has [OH-] = 5.2 x 10-7 M.

Calculate the pOH of a solution that has [OH-] = 3.1 x 10-8 M.

The symbol In- can be used to represent the base form of an indicator.

The substance NH3(aq) is:

Calculate the pOH of a solution that has [H3O+] = 3.1 x 10-8 M.

Given 0.10 M solutions of the following acids, which contains the highest concentration of H3O+?

The conjugate acid of H2PO4- is:

Given an H3O+ concentration of 1.0 x 10-4 M, calculate the OH- concentration, and then identify the solution as acidic, basic, or neutral.

Select the pair that consists of an acid and its conjugate base in that order.

If the pH of a certain soft drink is 3.60, what is the H3O+ concentration in the soft drink?

Which of the following is an amphoteric substance?

Select the two Brønsted-Lowry acids in the following equation: HNO2(aq) + H2O(l) ⇌ NO2-(aq) + H3O+(aq)

The H2PO4- ion is amphoteric.What are the conjugate acid and conjugate base of H2PO4-?

If the pH of a blood sample is 7.60, what is the H3O+ concentration in the blood?

Matter and Energy

Atoms, Ions, and the Periodic Table

Chemical Compounds

Chemical Composition

Chemical Reactions and Equations

Quantities in Chemical Reactions

Electron Structure of the Atom

Chemical Bonding

The Gaseous State

The Liquid and Solid States

Solutions

Reaction Rates and Chemical Equilibrium

Oxidation-Reduction Reactions

Nuclear Chemistry

Organic Chemistry

Biochemistry

Filters

When fluoride ion, F^-, reacts with water, what are the products?

Given an OH^- concentration of 0.10 M, calculate the H₃O⁺concentration, and then identify the solution as acidic, basic, or neutral.

Calculate the pOH of a solution that has [OH^-] = 5.9 x 10^-5M.

Calculate the pH of a solution that has [OH^-] = 3.1 x 10^-8M.

List the species present in order of increasing concentration in a 0.1 M solution of H₂Se.

Calculate the pH of a solution that has [OH^-] = 5.2 x 10^-7M.

Calculate the pOH of a solution that has [OH^-] = 3.1 x 10^-8M.

The symbol In^- can be used to represent the base form of an indicator.

The substance NH₃(aq) is:

Calculate the pOH of a solution that has [H₃O⁺] = 3.1 x 10^-8M.

Given 0.10 M solutions of the following acids, which contains the highest concentration of H₃O⁺?

The conjugate acid of H₂PO₄^- is:

Given an H₃O⁺ concentration of 1.0 x 10^-4 M, calculate the OH^-concentration, and then identify the solution as acidic, basic, or neutral.

If the pH of a certain soft drink is 3.60, what is the H₃O⁺ concentration in the soft drink?

Select the two Brønsted-Lowry acids in the following equation: HNO₂(aq) + H₂O(l) ⇌ NO₂^-(aq) + H₃O⁺(aq)

The H₂PO₄^- ion is amphoteric.What are the conjugate acid and conjugate base of H₂PO₄^-?

If the pH of a blood sample is 7.60, what is the H₃O⁺ concentration in the blood?