For each of the following reactions, identify the...

For each of the following reactions, identify the Brønsted-Lowry acids and bases. What are the conjugate acid/base pairs? (a) $\mathrm{CN}^{-}+\mathrm{H}_{2} \mathrm{O} \rightleftharpoons \mathrm{HCN}+\mathrm{OH}^{-}$ (b) $\mathrm{HCO}_{3}^{-}+\mathrm{H}_{3} \mathrm{O}^{+} \rightleftharpoons \mathrm{H}_{2} \mathrm{CO}_{3}+\mathrm{H}_{2} \mathrm{O}$ (c) $\mathrm{CH}_{3} \mathrm{COOH}+\mathrm{HS}^{-} \rightleftharpoons \mathrm{CH}_{3} \mathrm{COO}^{-}+\mathrm{H}_{2} \mathrm{~S}$

For each of the following reactions, identify the Brønsted-Lowry acids and bases. What are the conjugate acid/base pairs?
(a) $\mathrm{CN}^{-}+\mathrm{H}_{2} \mathrm{O} \rightleftharpoons \mathrm{HCN}+\mathrm{OH}^{-}$
(b) $\mathrm{HCO}_{3}^{-}+\mathrm{H}_{3} \mathrm{O}^{+} \rightleftharpoons \mathrm{H}_{2} \mathrm{CO}_{3}+\mathrm{H}_{2} \mathrm{O}$
(c) $\mathrm{CH}_{3} \mathrm{COOH}+\mathrm{HS}^{-} \rightleftharpoons \mathrm{CH}_{3} \mathrm{COO}^{-}+\mathrm{H}_{2} \mathrm{~S}$

Labs

Want to see this concept in action?

NEW

Explore this concept interactively to see how it behaves as you change inputs.

View Labs

Key Concepts

Brønsted-Lowry Acid-Base Theory

This theory defines acids as species that donate a proton (H?) and bases as species that accept a proton. It shifts the focus from the presence of hydroxide ions to the transfer of protons in a reaction, allowing a broader range of reactions to be classified as acid-base reactions.

Proton Transfer

Proton transfer is the fundamental mechanism in Brønsted-Lowry acid-base reactions. In these reactions, a proton is transferred from the acid to the base, which fundamentally changes the identity of both participants and forms the basis for understanding the reaction process.

Conjugate Acid-Base Pairs

Conjugate acid-base pairs consist of the species formed after the acid donates a proton and the base accepts a proton. The acid's conjugate base is the species left after losing a proton, and the base’s conjugate acid is formed after gaining a proton. This interrelation highlights the reversible nature of acid-base reactions and the dynamic equilibrium between species.

Transcript

Please give Ace some feedback