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: Why is HF a weak acid and HCl a strong acid?

Solution: Why is HF a weak acid and HCl a strong acid?

Problem

Why is HF a weak acid and HCl a strong acid?

Solution

We´re asked to explain why HF is a weak acid and HCl is a strong acid.


Most acids have one common feature and that is the presence of the hydronium ion, which is represented by H+ or H3O+.


There are two major types of acids:

  • Binary acids: where H+ is attached to an electronegative element (N, S, P, or halogen).

These types of acids lack the element Oxygen and usually posses no metals.

The most common type of these acids are the haloacids (Halogen and H+).

  • Oxyacids: they contain H+, oxygen, and nonmetal.

They are created by the hydration of nonmetal oxides.


HF and HCl are made by H+ and a Halogen, so they´re Binary acids.


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