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Acid-Base Reactions Quiz

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Questions and Answers

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?

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?

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?

NH3 (aq) Signup and view all the answers

In the context of acid-base reactions, what characterizes a substance as an acid according to the Brønsted-Lowry theory?

It donates a proton to another species Signup and view all the answers

In the Brønsted-Lowry theory, which of the following best describes a conjugate acid-base pair?

Two species that differ by the loss or gain of a proton Signup and view all the answers

In the reaction of NH3 with H2O, which species is the base in the forward reaction?

NH3 Signup and view all the answers

Which of the following is a conjugate base of H3O+?

OH– Signup and view all the answers

Which of the following is a conjugate acid of CH3COO–?

CH3COOH Signup and view all the answers

What characterizes a substance as an acid in the Brønsted-Lowry theory?

Donates a proton Signup and view all the answers

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.