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Questions and Answers
According to the Brønsted-Lowry theory, which of the following best describes an acid?
According to the Brønsted-Lowry theory, which of the following best describes an acid?
- A substance that produces hydroxide ions when dissolved in water
- A species that donates a proton to another species (correct)
- A species that accepts a proton from another species
- A substance that produces H+ when dissolved in water
In the dissolution of nitric acid in water, what is the role of H2O according to the Brønsted-Lowry theory?
In the dissolution of nitric acid in water, what is the role of H2O according to the Brønsted-Lowry theory?
- It produces hydroxide ions
- It acts as a base by accepting a proton (correct)
- It acts as an acid by donating a proton
- It remains neutral in the reaction
What is the limitation of the Arrhenius definition of acids and bases?
What is the limitation of the Arrhenius definition of acids and bases?
- It tends to identify the OH– ion as the sole source of base character (correct)
- It only applies to a limited number of substances
- It doesn't consider proton-transfer reactions
- It focuses too much on proton donation
Which of the following is an example of a base according to the Brønsted-Lowry theory?
Which of the following is an example of a base according to the Brønsted-Lowry theory?
In the context of acid-base reactions, what characterizes a substance as an acid according to the Brønsted-Lowry theory?
In the context of acid-base reactions, what characterizes a substance as an acid according to the Brønsted-Lowry theory?
In the Brønsted-Lowry theory, which of the following best describes a conjugate acid-base pair?
In the Brønsted-Lowry theory, which of the following best describes a conjugate acid-base pair?
In the reaction of NH3 with H2O, which species is the base in the forward reaction?
In the reaction of NH3 with H2O, which species is the base in the forward reaction?
Which of the following is a conjugate base of H3O+?
Which of the following is a conjugate base of H3O+?
Which of the following is a conjugate acid of CH3COO–?
Which of the following is a conjugate acid of CH3COO–?
What characterizes a substance as an acid in the Brønsted-Lowry theory?
What characterizes a substance as an acid in the Brønsted-Lowry theory?
Study Notes
Brønsted-Lowry Theory
- An acid is a proton donor, donating an H+ ion.
- In the dissolution of nitric acid in water, H2O acts as a base, accepting an H+ ion.
- The limitation of the Arrhenius definition of acids and bases is that it only applies to aqueous solutions.
- A base is a proton acceptor, accepting an H+ ion.
- A substance is characterized as an acid if it donates an H+ ion.
- A conjugate acid-base pair consists of two species, one that donates an H+ ion (acid) and one that accepts an H+ ion (base).
- In the reaction of NH3 with H2O, NH3 is the base in the forward reaction, accepting an H+ ion.
- H2O is a conjugate base of H3O+.
- CH3COOH is a conjugate acid of CH3COO–.
- A substance is characterized as an acid in the Brønsted-Lowry theory if it donates an H+ ion.
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Description
Test your knowledge of acid-base reactions with this quiz! Explore the definition of acids and bases, and discover the limitations of the traditional acid-base theory. Ideal for chemistry enthusiasts and students looking to deepen their understanding of chemical reactions.
