Skip to main content
Ch.16 - Acid-Base Equilibria
Brown - Chemistry: The Central Science 14th Edition
Brown14th EditionChemistry: The Central ScienceISBN: 9780134414232Non è quello che usi tu?Cambia libro di testo
Tutti i libri di testoBrown 14th EditionCh.16 - Acid-Base EquilibriaProblema 111
Capitolo 16, Problema 111

Ritalin is the trade name of a drug, methylphenidate, used to treat attention-deficit/hyperactivity disorder in young adults. The chemical structure of methylphenidate is Chemical structure of ibuprofen, a common pain reliever.
(a) Is Ritalin an acid or a base? An electrolyte or a nonelectrolyte?

Guida verificata passo dopo passo
1
Step 1: Identify the functional groups in the chemical structure of methylphenidate. Look for groups that can donate or accept protons (H+).
Step 2: Determine if the molecule has any acidic or basic functional groups. Acids typically have carboxyl groups (-COOH), while bases often have amine groups (-NH2).
Step 3: Assess the molecule's ability to dissociate in water. Electrolytes dissociate into ions in water, while nonelectrolytes do not.
Step 4: Compare the structure of methylphenidate to known acids, bases, electrolytes, and nonelectrolytes to make an informed decision.
Step 5: Conclude whether Ritalin (methylphenidate) is an acid or a base, and whether it is an electrolyte or a nonelectrolyte based on the functional groups and dissociation properties.

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:
2m

Concetti chiave

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

Acids and Bases

Acids are substances that can donate protons (H+) in a solution, while bases can accept protons. The strength of an acid or base is determined by its ability to dissociate in water. Understanding whether a compound behaves as an acid or a base is crucial for predicting its reactivity and interactions in biological systems.
Video consigliato:
Percorso guidato
02:00
Arrhenius Acids and Bases

Electrolytes

Electrolytes are substances that dissociate into ions when dissolved in water, allowing the solution to conduct electricity. Strong electrolytes completely dissociate, while weak electrolytes partially dissociate. Identifying whether a compound is an electrolyte or nonelectrolyte is important for understanding its behavior in physiological conditions and its effects on cellular functions.
Video consigliato:
Percorso guidato
02:50
Electrolytes and Strong Acids

Chemical Structure and Functional Groups

The chemical structure of a compound, including its functional groups, determines its chemical properties and biological activity. For example, the presence of carboxylic acid groups (-COOH) can indicate acidic behavior, while amine groups (-NH2) can suggest basic properties. Analyzing the structure of methylphenidate is essential for determining its classification as an acid or base and its electrolyte nature.
Video consigliato:
Percorso guidato
00:41
Functional Groups Example
Pratica correlata
Domanda del libro di testo

Butyric acid is responsible for the foul smell of rancid butter. The pKa of butyric acid is 4.84. (c) Calculate the pH of a 0.050 M solution of sodium butyrate.

1125
views
Domanda del libro di testo

The following observations are made about a diprotic acid H2A: (i) A 0.10 M solution of H2A has pH = 3.30. (ii) A 0.10 M solution of the salt NaHA is acidic. Which of the following could be the value of pKa2 for H2A: (i) 3.22, (ii) 5.30, (iii) 7.47, or (iv) 9.82?

919
views
Domanda del libro di testo

Arrange the following 0.10 M solutions in order of increasing acidity: (i) NH4NO3, (ii) NaNO3, (iii) CH3COONH4, (iv) NaF, (v) CH3COONa.

Domanda del libro di testo

Butyric acid is responsible for the foul smell of rancid butter. The pKa of butyric acid is 4.84. (b) Calculate the pH of a 0.050 M solution of butyric acid.

906
views
1
rank