Amphetamine (C9H13N) is a weak base with a pKb of 4.2. Calculate the pH of a solution containing an amphetamine concentration of 225 mg/L.
Ch.17 - Acids and Bases
Chapter 17, Problem 100c
Determine whether each anion is basic or neutral. For those anions that are basic, write an equation that shows how the anion acts as a base. c. NO3–
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Acid-Base Theory
Acid-base theory explains the behavior of substances in terms of proton (H+) transfer. According to the Brønsted-Lowry theory, acids donate protons while bases accept them. Understanding this concept is crucial for determining whether an anion acts as a base or is neutral in solution.
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Bronsted-Lowry Acid-Base Theory
Properties of Anions
Anions are negatively charged ions that can influence the acidity or basicity of a solution. The nature of the anion, including its size and electronegativity, affects its ability to accept protons. For example, anions derived from strong acids, like NO3-, are typically neutral and do not exhibit basic properties.
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Physical Properties
Equilibrium and Reaction Equations
In acid-base reactions, equilibrium plays a key role in determining the direction of the reaction. Writing an equation to show how an anion acts as a base involves illustrating the proton transfer process. This requires understanding how to represent chemical species and their interactions in a balanced equation.
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Related Practice
Textbook Question
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