Domanda del libro di testo
The hydrogen sulfite ion 1HSO3-2 is amphiprotic. Write a balanced chemical equation showing how it acts as an acid toward water and another equation showing how it acts as a base toward water.
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Ch.16 - Acid-Base Equilibria
Brown14th EditionChemistry: The Central ScienceISBN: 9780134414232
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TOC.tableOfContents
- Ch.1 - Introduction: Matter, Energy, and Measurement177
- Ch.2 - Atoms, Molecules, and Ions231
- Ch.3 - Chemical Reactions and Reaction Stoichiometry216
- Ch.4 - Reactions in Aqueous Solution189
- Ch.5 - Thermochemistry175
- Ch.6 - Electronic Structure of Atoms168
- Ch.7 - Periodic Properties of the Elements150
- Ch.8 - Basic Concepts of Chemical Bonding177
- Ch.9 - Molecular Geometry and Bonding Theories200
- Ch.10 - Gases179
- Ch.11 - Liquids and Intermolecular Forces113
- Ch.12 - Solids and Modern Materials154
- Ch.13 - Properties of Solutions157
- Ch.14 - Chemical Kinetics199
- Ch.15 - Chemical Equilibrium128
- Ch.16 - Acid-Base Equilibria164
- Ch.17 - Additional Aspects of Aqueous Equilibria163
- Ch.18 - Chemistry of the Environment105
- Ch.19 - Chemical Thermodynamics164
- Ch.20 - Electrochemistry171
- Ch.21 - Nuclear Chemistry122
- Ch.22 - Chemistry of the Nonmetals82
- Ch.23 - Transition Metals and Coordination Chemistry79
- Ch.24 - The Chemistry of Life: Organic and Biological Chemistry16
Brown14th EditionChemistry: The Central ScienceISBN: 9780134414232Non è quello che usi tu?Cambia libro di testo
Capitolo 16, Problema 16b
Give the conjugate acid of the following Brønsted–Lowry bases: (i) SO42-, (ii) CH3NH2.
Guida verificata passo dopo passo1
Identify the Brønsted–Lowry base in each case. A Brønsted–Lowry base is a species that can accept a proton (H⁺).
For each base, add a proton (H⁺) to form the conjugate acid. This involves increasing the hydrogen count by one and adjusting the charge accordingly.
For (i) SO₄²⁻, add H⁺ to form HSO₄⁻. The sulfate ion (SO₄²⁻) accepts a proton to become the hydrogen sulfate ion (HSO₄⁻).
For (ii) CH₃NH₂, add H⁺ to form CH₃NH₃⁺. The methylamine (CH₃NH₂) accepts a proton to become the methylammonium ion (CH₃NH₃⁺).
Verify that the resulting species have the correct charge and structure to ensure they are the conjugate acids of the given bases.
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Brønsted–Lowry Theory
The Brønsted–Lowry theory defines acids as proton donors and bases as proton acceptors. This framework allows us to understand acid-base reactions in terms of the transfer of protons (H+ ions). In this context, identifying the conjugate acid of a base involves determining what species is formed when the base accepts a proton.
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Percorso guidato
02:08
Bronsted-Lowry Acid-Base Theory
Conjugate Acid-Base Pairs
Conjugate acid-base pairs consist of two species that differ by the presence of a proton. When a base gains a proton, it becomes its conjugate acid, while the acid that donates the proton becomes its conjugate base. Understanding these pairs is essential for predicting the outcome of acid-base reactions and for identifying the conjugate acids of given bases.
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01:30Conjugate Acid-Base Pairs
Examples of Conjugate Acids
To find the conjugate acids of specific bases, one must consider the chemical structure of the base. For instance, when the sulfate ion (SO4^2-) accepts a proton, it becomes hydrogen sulfate (HSO4^-). Similarly, when methylamine (CH3NH2) accepts a proton, it forms methylammonium (CH3NH3+). Recognizing these transformations is key to solving the problem.
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02:04Conjugate Acids and Bases Example
Pratica correlata
Domanda del libro di testo
Give the conjugate base of the following Brønsted–Lowry acids: (i) HIO3, (ii) NH4+.
415
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Domanda del libro di testo
Which of the following statements is false? (a) An Arrhenius base increases the concentration of OH- in water. (b) A Brønsted-Lowry base is a proton acceptor. (c) Water can act as a Brønsted–Lowry acid. (d) Water can act as a Brønsted–Lowry base. (e) Any compound that contains an –OH group acts as a Brønsted-Lowry base.
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Domanda del libro di testo
Give the conjugate base of the following Brønsted–Lowry acids: (i) HCOOH, (ii) HPO42-.
511
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Domanda del libro di testo
Identify the Brønsted–Lowry acid and the Brønsted–Lowry base on the left side of each of the following equations, and also identify the conjugate acid and conjugate base of each on the right side:
(a) NH4+(aq) + CN-(aq) ⇌ HCN(aq) + NH3(aq)
(b) (CH3)3N(aq) + H2O(l) ⇌ (CH3)3NH+(aq) + OH-(aq)
(c) HCOOH(aq) + PO43-(aq) ⇌ HCOO-(aq)+ HPO42-(aq)
295
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Domanda del libro di testo
Identify the Brønsted–Lowry acid and the Brønsted– Lowry base on the left side of each equation, and also identify the conjugate acid and conjugate base of each on the right side.
(a) HBrO(aq) + H2O(l) ⇌ H3O+(aq) + BrO-(aq)
(b) HSO4-(aq) + HCO3-(aq) ⇌ SO42-(aq) + H2CO3(aq)
(c) HSO3-(aq) + H3O+(aq) ⇌ H2SO3(aq) + H2O(l)
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