Question 1

The base forms a new ________ bond in a Brønsted-Lowry acid-base reaction.
A)covalent
B)aquo
C)hydrogen
D)ionic
E)metallic

Accepted Answer

A

Question 2

A Brønsted-Lowry base is a substance which
A)produces hydrogen ions in aqueous solution.
B)produces hydroxide ions in aqueous solution.
C)donates protons to other substances.
D)accepts protons from other substances.
E)accepts hydronium ions from other substances.

Accepted Answer

A Brønsted-Lowry base is defined as a substance that accepts protons from other substances, which is the case for choice D. Choice A describes a Brønsted-Lowry acid, while choice B describes the hydroxide ion, which is a common example of a Brønsted-Lowry base, but not the definition of the term itself. Choice C is partially correct, as Brønsted-Lowry bases can donate protons under certain circumstances, but the primary definition involves accepting protons. Choice E describes hydronium ions, which can act as both Brønsted-Lowry acids and bases, but is not a comprehensive definition of a Brønsted-Lowry base.

Question 3

Which of the following compounds is a salt? A)HBr B)KNO₃ C)H₂SO₄ D)NaOH E)C₆H₁₂O₆

Accepted Answer

Salts are ionic compounds formed by the neutralization reaction between an acid and a base. B) KNO3 (potassium nitrate) is a salt, consisting of potassium cations (K+) and nitrate anions (NO3-).

Question 4

What is the conjugate base of HSO₄^-? A)SO₄^2- B)H₂SO₄ C)H₃O⁺ D)OH^- E)H₂SO₃

Accepted Answer

The conjugate base is formed by removing a proton from the acid. In this case, the acid is HSO₄^-. Removing a proton would result in the loss of the hydrogen ion (H+), resulting in the anion SO₄^2-. Choice A is the only option that matches this anion.

Question 5

Consider the following reaction: NO₂^-+ HCO₃^- CO₃^-2 + HNO₂ Identify the acid,base,conjugate acid and conjugate base.

Accepted Answer

The answer of Consider the following reaction: NO₂^-+ HCO₃^-...

Question 6

When acids and bases react the product other than water is a
A)hydrogen ion.
B)hydroxide ion.
C)hydronium ion.
D)metal.
E)salt.

Accepted Answer

When acids and bases react, they neutralize each other to form salt and water. Therefore, the product other than water is a salt, which is made up of positively charged metal ions from the base and negatively charged ions from the acid.

Question 7

Which of the following cannot act as a Brønsted base? A)HCO₃^- B)CO₃^2- C)NH₃ D)NH₂^- E)NH₄⁺

Accepted Answer

The answer of Which of the following cannot act as...

Question 8

Which of the following is a diprotic acid?
A)acetic acid
B)hydrochloric acid
C)phosphoric acid
D)sulfuric acid
E)nitric acid

Accepted Answer

Sulfuric acid (H2SO4) is a diprotic acid because it can donate two protons (H+ ions) per molecule in aqueous solution.

Question 9

C₅H₅N + H₂CO₃ C₅H₆ N⁺ + HCO₃^- In the reaction shown,the conjugate acid of C₅H₅N is ________. A)C₅H₅N B)H₂CO₃ C)C₅H₆N⁺ D)HCO₃^- E)H₃O⁺

Accepted Answer

The answer of C₅H₅N + H₂CO₃ C₅H₆ N⁺ + HCO₃^- In...

Question 10

Which statement concerning Arrhenius acid-base theory is not correct?
A)An Arrhenius acid produces hydrogen ions in water solution.
B)An Arrhenius base produces hydroxide ions in water solution.
C)A neutralization reaction produces water plus a salt.
D)Acid-base reactions must take place in aqueous solution.
E)none of the above

Accepted Answer

All the statements A through D correctly describe aspects of the Arrhenius acid-base theory. A) An Arrhenius acid indeed produces hydrogen ions (H+) in water. B) An Arrhenius base produces hydroxide ions (OH-) in water. C) A neutralization reaction between an Arrhenius acid and base produces water and a salt. D) According to the Arrhenius definition, acid-base reactions occur in aqueous solutions.

Question 11

In the following equation,which of the following is acting as the Bronsted acid? HClO₄ + H₂O --> ClO₄^- + H₃O⁺ A)HClO₄ B)H₂O C)ClO₄^- D)H₃O⁺

Accepted Answer

A Bronsted acid is a substance that donates a proton (H+). In the given equation, HClO (hypochlorous acid) donates a proton to become ClO- (hypochlorite ion), thus acting as the Bronsted acid.

Question 12

According to Brønsted-Lowry theory,acid-base reactions can be described as ________ reactions.
A)electrolytic
B)electron transfer
C)gas phase
D)nuclear transfer
E)proton transfer

Accepted Answer

According to the Brønsted-Lowry theory, acid-base reactions involve the transfer of a proton (H+) from the acid to the base. Therefore, the best choice is E, which describes the reaction type as proton transfer.

Question 13

Which compound is manufactured in larger quantities in the U.S.than any other industrial chemical? A)HCl B)HNO₃ C)H₃PO₄ D)H₂SO₄ E)NaOH

Accepted Answer

Sulfuric acid (H₂SO₄) is produced in larger quantities than any other industrial chemical in the U.S. due to its wide range of applications in industries such as fertilizer production, petroleum refining, and chemical synthesis.

Question 14

Which pair of compounds is used in the manufacture of fertilizers? A)HCl and NaOH B)HCl and H₃PO₄ C)HNO₃ and HCl D)H₂SO₄ and H₃PO₄ E)HNO₃ and NaOH

Accepted Answer

H₂SO₄ (sulfuric acid) and H₃PO₄ (phosphoric acid) are commonly used in the manufacture of fertilizers. Sulfuric acid is used to produce ammonium sulfate, and phosphoric acid is used to produce phosphate fertilizers.

Question 15

Consider the reaction: H₂SO₃ + HCO₃^- H₂CO₃ + HSO₃^- a)Identify the acid,base,conjugate acid and conjugate base b)Identify two substances from the reaction which could be used to prepare a buffer.

Accepted Answer

The answer of Consider the reaction: H₂SO₃ + HCO₃^-...

Question 16

A Brønsted-Lowry acid is a substance which
A)produces hydrogen ions in aqueous solution.
B)produces hydroxide ions in aqueous solution.
C)donates protons to other substances.
D)accepts protons from other substances.
E)accepts hydronium ions from other substances.

Accepted Answer

A Brønsted-Lowry acid is defined as a substance that donates protons to other substances. This is the correct definition of a Brønsted-Lowry acid and distinguishes it from a Brønsted-Lowry base, which accepts protons. Choices A and B are incorrect because a Brønsted-Lowry acid does not necessarily produce hydrogen ions or hydroxide ions in aqueous solution, respectively. Choice D is incorrect because a Brønsted-Lowry acid donates protons rather than accepts them. Choice E is incorrect because a Brønsted-Lowry acid does not necessarily accept hydronium ions from other substances.

Question 17

Which of the following compounds is a salt? A)CH₃CO₂H B)NH₃ C)NH₄NO₃ D)Al(OH)₃ E)C₆H₆

Accepted Answer

The answer of Which of the following compounds is a...

Question 18

CH₃NH₂ + HCl CH₃NH₃⁺ + Cl^- A conjugate acid-base pair in the reaction shown is ________ and ________. A)CH₃NH₂ and HCl B)CH₃NH₂ and Cl^- C)CH₃NH₃⁺ and Cl^- D)HCl and Cl^- E)HCl and H₃O⁺

Accepted Answer

The answer of CH₃NH₂ + HCl CH₃NH₃⁺ + Cl^- A conjugate...

Question 19

The H₃O⁺ ion is called the ________ ion. A)hydroxide B)hydronium C)hydrogen D)protium E)water

Accepted Answer

The ion H₃O⁺ is formed when a water molecule (H2O) donates a proton (H+) to another water molecule, forming a hydronium ion (H3O+). Therefore, the best choice is B, which is the hydronium ion.

Question 20

A necessary requirement for a Brønsted base is
A)the presence of water as a reaction medium.
B)the presence of hydroxide in its formula.
C)a lone pair of electrons in its Lewis dot structure.
D)the production of hydronium ion upon reaction with water.
E)the presence of a metal ion in its formula.

Accepted Answer

A Brønsted base is a substance that can accept a proton (H+ ion) from an acid to form a conjugate acid. A necessary requirement for this is the presence of a lone pair of electrons in its Lewis dot structure. Options A, B, and D are incorrect as they are not a requirement for a Brønsted base; option E is incorrect as the presence of a metal ion does not necessarily make a substance a base.

Quiz 10: Acids and Bases

The base forms a new ________ bond in a Brønsted-Lowry acid-base reaction.

A Brønsted-Lowry base is a substance which

Which of the following compounds is a salt?

What is the conjugate base of HSO₄^-?

Consider the following reaction: NO₂^-+ HCO₃^- CO₃^-2 + HNO₂ Identify the acid,base,conjugate acid and conjugate base.

When acids and bases react the product other than water is a

Which of the following cannot act as a Brønsted base?

Which of the following is a diprotic acid?

C₅H₅N + H₂CO₃ C₅H₆ N⁺ + HCO₃^- In the reaction shown,the conjugate acid of C₅H₅N is ________.

Which statement concerning Arrhenius acid-base theory is not correct?

In the following equation,which of the following is acting as the Bronsted acid? HClO₄ + H₂O --> ClO₄^- + H₃O⁺

According to Brønsted-Lowry theory,acid-base reactions can be described as ________ reactions.

Which compound is manufactured in larger quantities in the U.S.than any other industrial chemical?

Which pair of compounds is used in the manufacture of fertilizers?

Consider the reaction: H₂SO₃ + HCO₃^- H₂CO₃ + HSO₃^- a)Identify the acid,base,conjugate acid and conjugate base b)Identify two substances from the reaction which could be used to prepare a buffer.

A Brønsted-Lowry acid is a substance which

Which of the following compounds is a salt?

CH₃NH₂ + HCl CH₃NH₃⁺ + Cl^- A conjugate acid-base pair in the reaction shown is and .

The H₃O⁺ ion is called the ________ ion.

A necessary requirement for a Brønsted base is

Quiz 10: Acids and Bases

The base forms a new ________ bond in a Brønsted-Lowry acid-base reaction.

A Brønsted-Lowry base is a substance which

Which of the following compounds is a salt?

What is the conjugate base of HSO4-?

Consider the following reaction: NO2- + HCO3- CO3-2 + HNO2 Identify the acid,base,conjugate acid and conjugate base.

When acids and bases react the product other than water is a

Which of the following cannot act as a Brønsted base?

Which of the following is a diprotic acid?

C5H5N + H2CO3 C5H6 N+ + HCO3- In the reaction shown,the conjugate acid of C5H5N is ________.

Which statement concerning Arrhenius acid-base theory is not correct?

In the following equation,which of the following is acting as the Bronsted acid? HClO4 + H2O --> ClO4- + H3O+

According to Brønsted-Lowry theory,acid-base reactions can be described as ________ reactions.

Which compound is manufactured in larger quantities in the U.S.than any other industrial chemical?

Which pair of compounds is used in the manufacture of fertilizers?

Consider the reaction: H2SO3 + HCO3- H2CO3 + HSO3- a)Identify the acid,base,conjugate acid and conjugate base b)Identify two substances from the reaction which could be used to prepare a buffer.

A Brønsted-Lowry acid is a substance which

Which of the following compounds is a salt?

CH3NH2 + HCl CH3NH3+ + Cl- A conjugate acid-base pair in the reaction shown is ________ and ________.

The H3O+ ion is called the ________ ion.

A necessary requirement for a Brønsted base is

What is the conjugate base of HSO₄^-?

Consider the following reaction: NO₂^-+ HCO₃^- CO₃^-2 + HNO₂ Identify the acid,base,conjugate acid and conjugate base.

C₅H₅N + H₂CO₃ C₅H₆ N⁺ + HCO₃^- In the reaction shown,the conjugate acid of C₅H₅N is ________.

In the following equation,which of the following is acting as the Bronsted acid? HClO₄ + H₂O --> ClO₄^- + H₃O⁺

Consider the reaction: H₂SO₃ + HCO₃^- H₂CO₃ + HSO₃^- a)Identify the acid,base,conjugate acid and conjugate base b)Identify two substances from the reaction which could be used to prepare a buffer.

CH₃NH₂ + HCl CH₃NH₃⁺ + Cl^- A conjugate acid-base pair in the reaction shown is and .

The H₃O⁺ ion is called the ________ ion.