Question 1

The pH of a solution is 5.00.Which of the following is TRUE about the solution?

Accepted Answer

A) Its [H3O+] is 1.0 × 10-9 M 
B) Its [H3O+] is 1.0 × 10-5 M 
C) Its [H3O+] is 1.0 × 105 M 
D) It is more acidic than a solution whose pH is 4.00. 
E) none of the above 
A) Its [H3O+] is 1.0 × 10-9 M 
B) Its [H3O+] is 1.0 × 10-5 M 
C) Its [H3O+] is 1.0 × 105 M 
D) It is more acidic than a solution whose pH is 4.00. 
E) none of the above

Question 2

What is the conjugate base of H2O?

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 3

Which of the following statements about a base are TRUE?
1.Bases are used in the manufacturing of soap.
2.Bases have a sour taste.
3.Fertilizer manufacture and cotton processing use bases.

Accepted Answer

A) 1 and 2 only 
B) 1 and 3 only 
C) 2 and 3 only 
D) All of 1,2,and 3 
E) Neither 1,2,or 3 
A) 1 and 2 only 
B) 1 and 3 only 
C) 2 and 3 only 
D) All of 1,2,and 3 
E) Neither 1,2,or 3

Question 4

What is the concentration of H+ in a solution with pH = 2.00?

Accepted Answer

A) 5.0 M 
B) 1.1 M 
C) 0.010 M 
D) 0.30 M 
E) none of the above 
A) 5.0 M 
B) 1.1 M 
C) 0.010 M 
D) 0.30 M 
E) none of the above

Question 5

Which of the following is a weak base?

Accepted Answer

A) calcium hydroxide 
B) sodium fluoride 
C) potassium hydroxide 
D) ammonia 
E) none of the above 
A) calcium hydroxide 
B) sodium fluoride 
C) potassium hydroxide 
D) ammonia 
E) none of the above

Question 6

Consider a 1.6 × 10-3 M solution of HNO3.Which of the following statements is NOT true?

Accepted Answer

A) This solution would turn litmus to red. 
B) This solution could neutralize a base. 
C) This solution has a pH of 11.20. 
D) This solution could dissolve metal. 
E) none of the above 
A) This solution would turn litmus to red. 
B) This solution could neutralize a base. 
C) This solution has a pH of 11.20. 
D) This solution could dissolve metal. 
E) none of the above

Question 7

Bases feel slippery.

Accepted Answer

A) True 
 B)False

Question 8

When an acid reacts with a metal,what is one of the usual products?

Accepted Answer

A) water 
B) salt 
C) carbon dioxide 
D) hydrogen gas 
E) none of the above 
A) water 
B) salt 
C) carbon dioxide 
D) hydrogen gas 
E) none of the above

Question 9

A Bronsted-Lowry acid is a proton donor.

Accepted Answer

A) True 
 B)False

Question 10

The conjugate base to HSO4- is SO42-.

Accepted Answer

A) True 
 B)False

Question 11

Acids produce H⁺ ions in solution.

Accepted Answer

A) True 
 B)False

Question 12

The sour taste of bases warns humans against eating poisonous alkaloids found in some plants.

Accepted Answer

A) True 
 B)False

Question 13

In the following reaction: NH4+ (aq)+ H2O (aq)→ NH3 (aq)+ H3O+ (aq)

Accepted Answer

A) NH4+ is an acid and H2O is its conjugate base. 
B) H2O is a base and NH3 is its conjugate acid. 
C) NH4+ is an acid and H3O+ is its conjugate base. 
D) H2O is a base and H3O+ is its conjugate acid. 
E) NH4+ is a base and H2O is its conjugate acid. 
A) NH4+ is an acid and H2O is its conjugate base. 
B) H2O is a base and NH3 is its conjugate acid. 
C) NH4+ is an acid and H3O+ is its conjugate base. 
D) H2O is a base and H3O+ is its conjugate acid. 
E) NH4+ is a base and H2O is its conjugate acid.

Question 14

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 15

What is the concentration of H⁺ in 2.0 M acetic acid,HC2H3O2?

Accepted Answer

A) 1.0 M B) 2.0 M C) >2.0 M D) < 2.0 M E) none of the above A) 1.0 M B) 2.0 M C) >2.0 M D) < 2.0 M E) none of the above

Question 16

Which of the following statements about acids are TRUE?
1.An acid is used in car batteries.
2.The active ingredient of vinegar is an acid.
3.Acids are used for cleaning metals.

Accepted Answer

A) 1 and 2 only 
B) 2 and 3 only 
C) 1 and 3 only 
D) All of 1,2,and 3 
E) Neither 1,2,or 3 
A) 1 and 2 only 
B) 2 and 3 only 
C) 1 and 3 only 
D) All of 1,2,and 3 
E) Neither 1,2,or 3

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

A solution of pH 2 contains ten times more H3O+ than a solution of pH 3.

Accepted Answer

A) True 
 B)False

Question 19

Which of the following common bases is commonly used for manufacturing fertilizer?

Accepted Answer

A) NH3 
B) NaHCO3 
C) KOH 
D) NaOH 
E) all of the above 
A) NH3 
B) NaHCO3 
C) KOH 
D) NaOH 
E) all of the above

Question 20

A solution at 25°C has a hydrogen ion concentration of 2.6 × 10-5 M.Which of the following is TRUE?

Accepted Answer

A) [H3O+] > [OH-] 
B) [H3O+] -] 
C) [H3O+] = [OH-] 
D) [H3O+] =   
E) none of the above 
A) [H3O+] > [OH-] 
B) [H3O+] -] 
C) [H3O+] = [OH-] 
D) [H3O+] =   
E) none of the above

The pH of a solution is 5.00.Which of the following is TRUE about the solution?

What is the conjugate base of H₂O?

Which of the following statements about a base are TRUE? 1.Bases are used in the manufacturing of soap. 2.Bases have a sour taste. 3.Fertilizer manufacture and cotton processing use bases.

What is the concentration of H⁺ in a solution with pH = 2.00?

Which of the following is a weak base?

Consider a 1.6 × 10^-³ M solution of HNO₃.Which of the following statements is NOT true?

Bases feel slippery.

When an acid reacts with a metal,what is one of the usual products?

A Bronsted-Lowry acid is a proton donor.

The conjugate base to HSO₄^- is SO₄²^-.

Acids produce H⁺ ions in solution.

The sour taste of bases warns humans against eating poisonous alkaloids found in some plants.

In the following reaction: NH₄⁺(aq)+ H₂O (aq)→ NH₃(aq)+ H₃O⁺(aq)

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

What is the concentration of H⁺ in 2.0 M acetic acid,HC₂H₃O₂?

Which of the following statements about acids are TRUE? 1.An acid is used in car batteries. 2.The active ingredient of vinegar is an acid. 3.Acids are used for cleaning metals.

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

A solution of pH 2 contains ten times more H₃O⁺than a solution of pH 3.

Which of the following common bases is commonly used for manufacturing fertilizer?

A solution at 25°C has a hydrogen ion concentration of 2.6 × 10^-⁵ M.Which of the following is TRUE?

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Exam 14: Acids and Bases

The pH of a solution is 5.00.Which of the following is TRUE about the solution?

What is the conjugate base of H2O?

Which of the following statements about a base are TRUE? 1.Bases are used in the manufacturing of soap. 2.Bases have a sour taste. 3.Fertilizer manufacture and cotton processing use bases.

What is the concentration of H+ in a solution with pH = 2.00?

Which of the following is a weak base?

Consider a 1.6 × 10-3 M solution of HNO3.Which of the following statements is NOT true?

Bases feel slippery.

When an acid reacts with a metal,what is one of the usual products?

A Bronsted-Lowry acid is a proton donor.

The conjugate base to HSO4- is SO42-.

Acids produce H⁺ ions in solution.

The sour taste of bases warns humans against eating poisonous alkaloids found in some plants.

In the following reaction: NH4+ (aq)+ H2O (aq)→ NH3 (aq)+ H3O+ (aq)

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

What is the concentration of H⁺ in 2.0 M acetic acid,HC2H3O2?

Which of the following statements about acids are TRUE? 1.An acid is used in car batteries. 2.The active ingredient of vinegar is an acid. 3.Acids are used for cleaning metals.

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

A solution of pH 2 contains ten times more H3O+ than a solution of pH 3.

Which of the following common bases is commonly used for manufacturing fertilizer?

A solution at 25°C has a hydrogen ion concentration of 2.6 × 10-5 M.Which of the following is TRUE?

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

Organic Chemistry

Biochemistry

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What is the conjugate base of H₂O?

What is the concentration of H⁺ in a solution with pH = 2.00?

Consider a 1.6 × 10^-³ M solution of HNO₃.Which of the following statements is NOT true?

The conjugate base to HSO₄^- is SO₄²^-.

In the following reaction: NH₄⁺(aq)+ H₂O (aq)→ NH₃(aq)+ H₃O⁺(aq)

What is the concentration of H⁺ in 2.0 M acetic acid,HC₂H₃O₂?

A solution of pH 2 contains ten times more H₃O⁺than a solution of pH 3.

A solution at 25°C has a hydrogen ion concentration of 2.6 × 10^-⁵ M.Which of the following is TRUE?