Name the functional acidic groups of Alka Seltzer and their pka values.


Name the functional acidic groups of Alka Seltzer and their pKa values.


Antacids are over-the-counter (OTC) medications used in neutralizing the acids in the stomach. These drugs reduce the secretion of acid in the stomach.

Stomach pH:

  • The pH of human stomachs is carefully regulated in order to enable us to digest food, and to protect us from bacterial infections.
  • The very low pH of the stomach is produced by parietal cells of the stomach, which pump protons and chloride ions into the stomach to produce hydrochloric acid.
  • Sometimes the acid in the stomach can be forced out into the esophagus, producing the painful sensation of heartburn.

Answer and Explanation:

Become a member to unlock this answer!

View this answer

Aspirin (acetylsalicylic acid) (ASA), pKa is 3.49 (at 25 °C)

Anhydrous citric acid - There are 3 hydrogen atoms which can be de-protonated in...

See full answer below.

Learn more about this topic:

Reactions of Acids: Metals, Carbonates & Hydroxides


Chapter 25 / Lesson 5

Explore acid reactions. Understand acid-metal reactions, acid-carbonate reactions, acid-hydroxide reactions. See their results, chemical equations, and examples.

Related to this Question

Explore our homework questions and answers library