Ch.15 - Acid and Base EquilibriumWorksheetSee all chapters
All Chapters
Ch.1 - Intro to General Chemistry
Ch.2 - Atoms & Elements
Ch.3 - Chemical Reactions
BONUS: Lab Techniques and Procedures
BONUS: Mathematical Operations and Functions
Ch.4 - Chemical Quantities & Aqueous Reactions
Ch.5 - Gases
Ch.6 - Thermochemistry
Ch.7 - Quantum Mechanics
Ch.8 - Periodic Properties of the Elements
Ch.9 - Bonding & Molecular Structure
Ch.10 - Molecular Shapes & Valence Bond Theory
Ch.11 - Liquids, Solids & Intermolecular Forces
Ch.12 - Solutions
Ch.13 - Chemical Kinetics
Ch.14 - Chemical Equilibrium
Ch.15 - Acid and Base Equilibrium
Ch.16 - Aqueous Equilibrium
Ch. 17 - Chemical Thermodynamics
Ch.18 - Electrochemistry
Ch.19 - Nuclear Chemistry
Ch.20 - Organic Chemistry
Ch.22 - Chemistry of the Nonmetals
Ch.23 - Transition Metals and Coordination Compounds

Solution: Hydrofluoric acid, HF, is a weak acid that dissociates in water according to the following equation:HF(aq) + H2O(l) ⇌ H3O+(aq) + F(aq)What is the conjugate base of HF in this reaction? Choose 1 answer:a. H2O(l)b. F(aq)c. H3O+(aq)d. F2(g)

Problem

Hydrofluoric acid, HF, is a weak acid that dissociates in water according to the following equation:

HF(aq) + H2O(l) ⇌ H3O+(aq) + F(aq)

What is the conjugate base of HF in this reaction? Choose 1 answer:

a. H2O(l)

b. F(aq)

c. H3O+(aq)

d. F2(g)

Solution

We’re being asked to determine the conjugate base of HF.


Recall that the conjugate base of an acid is simply the compound formed when an acid loses a hydronium ion (H+). It's considered as a base because it can gain H+ to reform the acid.


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