Identify with formulas the acid and base from which the...

Name: Problem 64, Chapter 9: Chemistry for Today: General, Organic, and Biochemistry
Uploaded: 2022-04-10T04:49:36-08:00
Duration: 1 min 30 s
Channel: Susan Hallstrom
Description: Identify with formulas the acid and base from which the anion and cation of each salt in Exercise 9.62 was derived. Pay special attention to salts derived from polyprotic acids and be sure to list the acid formula with all H's.

Identify with formulas the acid and base from which the anion and cation of each salt in Exercise 9.62 was derived. Pay special attention to salts derived from polyprotic acids and be sure to list the acid formula with all H's.

Key Concepts

Conjugate Acid-Base Pairs

This concept refers to the relationship in which an acid donates a proton (H?) to form its conjugate base, while a base accepts a proton to form its conjugate acid. In the context of salts, the anion is typically the conjugate base of the parent acid, and the cation is derived from the conjugate acid of the parent base. Understanding this concept is crucial for identifying the source acid and base from which the ions in a salt are derived.

Acid-Base Neutralization Reaction

This is the chemical reaction in which an acid reacts with a base to form a salt and water. The process involves the combination of H? ions from the acid with OH? ions from the base. Recognizing the neutralization reaction helps in tracing back the ions in a salt to their respective parent acid and base, by reversing the reaction process.

Polyprotic Acids

Polyprotic acids are acids that can donate more than one proton per molecule during the dissociation process. Each step of deprotonation forms a different conjugate base, and it is important to account for all the hydrogen atoms when writing the full formula of the original polyprotic acid. This is essential in problems where salts are derived from polyprotic acids, ensuring that the acid formulas are complete with all available acidic protons.

Chemical Formula Representation

Accurate chemical formula representation is fundamental in identifying the origin of ions in salts. This involves writing the molecular formulas of acids and bases with all component atoms, including all hydrogen atoms in acids, and ensuring the charges are balanced. Clear representation allows one to trace how particular ions in the salt are derived from their parent compounds through processes such as deprotonation in acids or removal of hydroxide in bases.

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