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Ch.17 - Acids and Bases
Tro - Chemistry: A Molecular Approach 6th Edition
Tro6th EditionChemistry: A Molecular ApproachISBN: 9780137832217Non è quello che usi tu?Cambia libro di testo
Tutti i libri di testoTro 6th EditionCh.17 - Acids and BasesProblema 36a
Capitolo 17, Problema 36a

Write the formula for the conjugate base of each acid. a. H2SO4

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1
Identify the acid in the problem: \( \text{H}_2\text{SO}_4 \) (sulfuric acid).
Recall that a conjugate base is formed by removing a proton (\( \text{H}^+ \)) from the acid.
Remove one \( \text{H}^+ \) ion from \( \text{H}_2\text{SO}_4 \), which leaves \( \text{HSO}_4^- \).
Recognize that the charge of the conjugate base is one less than the original acid due to the loss of a proton.
Write the formula for the conjugate base: \( \text{HSO}_4^- \).

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Conjugate Acid-Base Pairs

In acid-base chemistry, a conjugate acid-base pair consists of two species that differ by the presence of a proton (H+). When an acid donates a proton, it transforms into its conjugate base, while the base that accepts the proton becomes its conjugate acid. Understanding this relationship is crucial for identifying the conjugate base of any given acid.
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Conjugate Acid-Base Pairs

Sulfuric Acid (H2SO4)

Sulfuric acid (H2SO4) is a strong diprotic acid, meaning it can donate two protons (H+) in solution. The first dissociation produces the hydrogen sulfate ion (HSO4-), and the second dissociation leads to the sulfate ion (SO4^2-). Recognizing the structure and behavior of sulfuric acid is essential for determining its conjugate base.
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Acids and Their Structure

Identifying Conjugate Bases

To find the conjugate base of an acid, one must remove a proton from the acid's formula. For H2SO4, the removal of one proton yields HSO4-, which is the conjugate base of H2SO4. If another proton is removed from HSO4-, the resulting species is SO4^2-, which is the conjugate base of HSO4-. This stepwise removal is key to understanding acid-base relationships.
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Strength of Conjugate Acids and Bases
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