Skip to main content
Ch.16 - Acids and Bases
Tro - Chemistry: A Molecular Approach 4th Edition
Tro4th EditionChemistry: A Molecular ApproachISBN: 9780134112831Non è quello che usi tu?Cambia libro di testo
Tutti i libri di testoTro 4th EditionCh.16 - Acids and BasesProblema 41c
Capitolo 16, Problema 41c

Classify each acid as strong or weak. If the acid is weak, write an expression for the acid ionization constant (Ka). c. HBr

Guida verificata passo dopo passo
1
Identify the acid in question: HBr.
Recall that strong acids completely dissociate in water, while weak acids do not.
HBr is one of the common strong acids, which means it completely dissociates in water.
Since HBr is a strong acid, it does not have an acid ionization constant (K_a) because it does not establish an equilibrium in solution.
Therefore, classify HBr as a strong acid and note that no K_a expression is needed.

Risposta video verificata per un problema simile:

Questa soluzione video è stata consigliata dai nostri tutor come utile per risolvere questo problema.
Durata del video:
55s

Concetti chiave

Ecco i concetti essenziali che devi comprendere per rispondere correttamente alla domanda.

Strong vs. Weak Acids

Strong acids completely dissociate in water, releasing all their protons (H+), while weak acids only partially dissociate. This distinction is crucial for understanding acid behavior in solution, as strong acids have a high concentration of H+ ions, leading to a lower pH, whereas weak acids have a higher pH due to their incomplete dissociation.
Video consigliato:
Percorso guidato
02:19
Weak Acid-Strong Base Titration Curve

Acid Ionization Constant (Ka)

The acid ionization constant (Ka) quantifies the strength of a weak acid by measuring the extent of its dissociation in water. It is defined by the equilibrium expression: Ka = [H+][A-]/[HA], where [H+] is the concentration of hydrogen ions, [A-] is the concentration of the conjugate base, and [HA] is the concentration of the undissociated acid. A larger Ka value indicates a stronger weak acid.
Video consigliato:
Percorso guidato
03:50
Characteristics of Ka and Kb

Hydrobromic Acid (HBr)

Hydrobromic acid (HBr) is classified as a strong acid because it completely dissociates in aqueous solution. This means that when HBr is dissolved in water, it releases all of its hydrogen ions, resulting in a high concentration of H+ ions and a low pH. Understanding this classification helps in predicting the behavior of HBr in chemical reactions and its impact on pH.
Video consigliato:
Percorso guidato
01:03
Binary Acids
Pratica correlata
Domanda del libro di testo

Classify each acid as strong or weak. If the acid is weak, write an expression for the acid ionization constant (Ka). a. HF

873
views
Domanda del libro di testo

Classify each acid as strong or weak. If the acid is weak, write an expression for the acid ionization constant (Ka). d. H2SO3

645
views
Domanda del libro di testo

Classify each acid as strong or weak. If the acid is weak, write an expression for the acid ionization constant (Ka). b. HCl

319
views
Domanda del libro di testo

Both H2O and H2PO4– are amphoteric. Write an equation to show how each substance can act as an acid and another equation to show how each can act as a base.

3236
views
Domanda del libro di testo

Classify each acid as strong or weak. If the acid is weak, write an expression for the acid ionization constant (Ka). a. HNO3

469
views
Domanda del libro di testo

Classify each acid as strong or weak. If the acid is weak, write an expression for the acid ionization constant (Ka). b. HCHO2

513
views