Question 1

Which of the following is a strong electrolyte when dissolved in distilled water?

Accepted Answer

A) sodium chloride 
B) sucrose 
C) acetone (nail polish remover) 
D) ethyl alcohol 
A) sodium chloride 
B) sucrose 
C) acetone (nail polish remover) 
D) ethyl alcohol

Question 2

Acetic acid is a diprotic acid.

Accepted Answer

A) True 
 B)False

Question 3

The pH of natural rainwater is close to ________.

Accepted Answer

A) 5.6 
B) 6.3 
C) 7.0 
D) 8.2 
A) 5.6 
B) 6.3 
C) 7.0 
D) 8.2

Question 4

What were the three main defining characteristics of acids, according to the alchemists?

Accepted Answer

1)a sour taste
2)turned litmus

Question 5

A drop of a full unit in the pH scale ________.

Accepted Answer

A) reduces the acidity 10× 
B) increases the acidity 10× 
C) reduces the acidity 2× 
D) increases the acidity 2× 
A) reduces the acidity 10× 
B) increases the acidity 10× 
C) reduces the acidity 2× 
D) increases the acidity 2×

Question 6

Which of the following does not qualify as a Bronsted-Lowry base?

Accepted Answer

A) CH4 
B) NH3 
C) PH3 
D) H2O 
A) CH4 
B) NH3 
C) PH3 
D) H2O

Question 7

"Buffered" solutions are resistant to pH changes, even when small amounts of strong acid or base are added to them.

Accepted Answer

A) True 
 B)False

Question 8

Deionized water can conduct electricity.

Accepted Answer

A) True 
 B)False

Question 9

The conjugate base of H2PO4- is ________.

Accepted Answer

A) H3PO4 
B) HPO4-2 
C) PO4-3 
D) H4PO4+ 
A) H3PO4 
B) HPO4-2 
C) PO4-3 
D) H4PO4+

Question 10

Water can serve both as a Bronsted-Lowry acid and Bronsted-Lowry base.

Accepted Answer

A) True 
 B)False

Question 11

Sulfuric acid is a diprotic acid.

Accepted Answer

A) True 
 B)False

Question 12

An electrolyte is a substance that, when dissolved in water, yields a solution that conducts electric current.

Accepted Answer

A) True 
 B)False

Question 13

The conjugate base of ammonia is ________.

Accepted Answer

A) NH2- 
B) NH- 
C) N-3 
D) NH4+ 
A) NH2- 
B) NH- 
C) N-3 
D) NH4+

Question 14

An aqueous solution of HCl is called hydrochloric acid.

Accepted Answer

A) True 
 B)False

Question 15

Which of the following could be considered an Arrhenius acid?

Accepted Answer

A) HCl 
B) CH3COOH 
C) NH4+ 
D) All of the above are Arrhenius acids. 
A) HCl 
B) CH3COOH 
C) NH4+ 
D) All of the above are Arrhenius acids.

Question 16

Hydrochloric, hypochlorous and hydrobromic acids produce only one H3O+ ion per molecule of acid when dissolved in water.

Accepted Answer

A) True 
 B)False

Question 17

Which of the following does not produce more than one H3O+ ion per molecule of acid when dissolved in water?

Accepted Answer

A) carbonic 
B) sulfurous 
C) phosphoric 
D) acetic 
A) carbonic 
B) sulfurous 
C) phosphoric 
D) acetic

Question 18

Match between columns
                        Premises: pH = 10.24
[OH-] = 1.2 × 10S1U1P1-8S1S1P0
pH = 5.24
[OH-] = 1.2 × 10S1U1P1-4S1S1P0
[HS1U1B13S1U1B0O+] = 4.2 × 10S1U1P1-2S1S1P0
pOH = 3.1
[HS1U1B13S1U1B0O+] = 1.2 × 10S1U1P1-9S1S1P0
pOH = 9.1

Accepted Answer

The Answer of Basic and Acidic is...

Question 19

An aqueous solution of pOH 5 is more basic than an aqueous solution of pOH 8.

Accepted Answer

A) True 
 B)False

Question 20

PH3 cannot be described as a Bronsted-Lowry base.

Accepted Answer

A) True 
 B)False

Which of the following is a strong electrolyte when dissolved in distilled water?

Acetic acid is a diprotic acid.

The pH of natural rainwater is close to ________.

What were the three main defining characteristics of acids, according to the alchemists?

A drop of a full unit in the pH scale ________.

Which of the following does not qualify as a Bronsted-Lowry base?

"Buffered" solutions are resistant to pH changes, even when small amounts of strong acid or base are added to them.

Deionized water can conduct electricity.

The conjugate base of H₂PO₄^- is ________.

Water can serve both as a Bronsted-Lowry acid and Bronsted-Lowry base.

Sulfuric acid is a diprotic acid.

An electrolyte is a substance that, when dissolved in water, yields a solution that conducts electric current.

The conjugate base of ammonia is ________.

An aqueous solution of HCl is called hydrochloric acid.

Which of the following could be considered an Arrhenius acid?

Hydrochloric, hypochlorous and hydrobromic acids produce only one H₃O⁺ ion per molecule of acid when dissolved in water.

Which of the following does not produce more than one H₃O⁺ ion per molecule of acid when dissolved in water?

An aqueous solution of pOH 5 is more basic than an aqueous solution of pOH 8.

PH₃ cannot be described as a Bronsted-Lowry base.

What Is Chemistry

The Numerical Side of Chemistry

The Evolution of Atomic Theory

The Modern Model of the Atom

Chemical Bonding and Nomenclature

The Shape of Molecules

Intermolecular Forces and the Phases of Matter

Chemical Reactions

Stoichiometry and the Mole

Electron Transfer in Chemical Reactions

What If There Were No Intermolecular Forces the Ideal Gas

Solutions

When Reactants Turn Into Products

Chemical Equilibrium

Nuclear Chemistry

The Chemistry of Carbon

Synthetic and Biological Polymers

Filters

Exam 15: Electrolytes, Acids, and Bases

Which of the following is a strong electrolyte when dissolved in distilled water?

Acetic acid is a diprotic acid.

The pH of natural rainwater is close to ________.

What were the three main defining characteristics of acids, according to the alchemists?

A drop of a full unit in the pH scale ________.

Which of the following does not qualify as a Bronsted-Lowry base?

"Buffered" solutions are resistant to pH changes, even when small amounts of strong acid or base are added to them.

Deionized water can conduct electricity.

The conjugate base of H2PO4- is ________.

Water can serve both as a Bronsted-Lowry acid and Bronsted-Lowry base.

Sulfuric acid is a diprotic acid.

An electrolyte is a substance that, when dissolved in water, yields a solution that conducts electric current.

The conjugate base of ammonia is ________.

An aqueous solution of HCl is called hydrochloric acid.

Which of the following could be considered an Arrhenius acid?

Hydrochloric, hypochlorous and hydrobromic acids produce only one H3O+ ion per molecule of acid when dissolved in water.

Which of the following does not produce more than one H3O+ ion per molecule of acid when dissolved in water?

An aqueous solution of pOH 5 is more basic than an aqueous solution of pOH 8.

PH3 cannot be described as a Bronsted-Lowry base.

What Is Chemistry

The Numerical Side of Chemistry

The Evolution of Atomic Theory

The Modern Model of the Atom

Chemical Bonding and Nomenclature

The Shape of Molecules

Intermolecular Forces and the Phases of Matter

Chemical Reactions

Stoichiometry and the Mole

Electron Transfer in Chemical Reactions

What If There Were No Intermolecular Forces the Ideal Gas

Solutions

When Reactants Turn Into Products

Chemical Equilibrium

Nuclear Chemistry

The Chemistry of Carbon

Synthetic and Biological Polymers

Filters

The conjugate base of H₂PO₄^- is ________.

Hydrochloric, hypochlorous and hydrobromic acids produce only one H₃O⁺ ion per molecule of acid when dissolved in water.

Which of the following does not produce more than one H₃O⁺ ion per molecule of acid when dissolved in water?

PH₃ cannot be described as a Bronsted-Lowry base.