Textbook Question
In each reaction, identify the Brønsted–Lowry acid, the Brønsted–Lowry base, the conjugate acid, and the conjugate base. d. C5H5N(aq) + H2O(l) ⇌ C5H5NH+(aq) + OH–(aq)
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Ch.17 - Acids and Bases
Tro5th EditionChemistry: A Molecular ApproachISBN: 9780134874371
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Table of contents
- Ch.1 - Matter, Measurement & Problem Solving101
- Ch.2 - Atoms & Elements96
- Ch.3 - Molecules and Compounds119
- Ch.4 - Chemical Reactions and Chemical Quantities48
- Ch.5 - Introduction to Solutions and Aqueous Solutions78
- Ch.6 - Gases98
- Ch.7 - Thermochemistry85
- Ch.8 - The Quantum-Mechanical Model of the Atom49
- Ch.9 - Periodic Properties of the Elements71
- Ch.10 - Chemical Bonding I: The Lewis Model80
- Ch.11 - Chemical Bonding II: Molecular Shapes, VSEPR & MO Theory79
- Ch.12 - Liquids, Solids & Intermolecular Forces38
- Ch.13 - Solids & Modern Materials35
- Ch.14 - Solutions66
- Ch.15 - Chemical Kinetics83
- Ch.16 - Chemical Equilibrium52
- Ch.17 - Acids and Bases114
- Ch.18 - Aqueous Ionic Equilibrium128
- Ch.19 - Free Energy & Thermodynamics72
- Ch.20 - Electrochemistry88
- Ch.21 - Radioactivity & Nuclear Chemistry50
- Ch.22 - Organic Chemistry138
Chapter 17, Problem 37a
Write the formula for the conjugate base of each acid. a. HCl
Verified step by step guidance1
Identify the acid in the problem: HCl.
Recall that a conjugate base is formed by removing a proton (H⁺) from the acid.
Remove one hydrogen ion (H⁺) from HCl, which leaves you with Cl⁻.
Recognize that the remaining species, Cl⁻, is the conjugate base of HCl.
Write the formula for the conjugate base: Cl⁻.
Verified Solution
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
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
Strong Acids and Their Conjugate Bases
Strong acids, such as hydrochloric acid (HCl), completely dissociate in water, meaning they release all their protons. The conjugate base of a strong acid is typically a weak base, which does not readily accept protons. For HCl, the conjugate base is Cl-, which is stable and does not react significantly with water to form HCl again.
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01:09Strong Acid-Strong Base Titration
Chemical Notation and Formulas
Chemical notation is a system of symbols used to represent elements and compounds. The formula for a conjugate base is derived from the acid's formula by removing one hydrogen atom and adjusting the charge accordingly. For HCl, the removal of H+ results in the formula Cl-, indicating the chloride ion as the conjugate base.
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02:50Standard Notation to Scientific Notation
Related Practice
Textbook Question
In each reaction, identify the Brønsted–Lowry acid, the Brønsted–Lowry base, the conjugate acid, and the conjugate base. b. CH3NH2(aq) + H2O(l) ⇌ CH3NH3+(aq) + OH–(aq)
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Textbook Question
In each reaction, identify the Brønsted–Lowry acid, the Brønsted–Lowry base, the conjugate acid, and the conjugate base. c. CO32–(aq) + H2O(l) ⇌ HCO3–(aq) + OH–(aq)
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Write the formula for the conjugate base of each acid. b. H2SO3
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Write the formula for the conjugate base of each acid. c. HCHO2
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Textbook Question
Write the formula for the conjugate base of each acid. d. HF
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