Practice Problem: Analyzing Acid-Base Equilibria

The video tutorial explains an acid-base reaction involving carboxylic acid and ammonia. It covers identifying the acid and base, understanding resonance stabilization of the conjugate base, and forming conjugate acid and base. The tutorial also discusses predicting the equilibrium direction based on acid strength, emphasizing that the reaction favors the side with the weaker acid.

What are the two reactants involved in the acid-base reaction discussed in the video?

• Acetic acid and ethanol

• Sulfuric acid and water

• Hydrochloric acid and sodium hydroxide

• Carboxylic acid and ammonia

Which of the following acts as the base in the reaction?

• Ammonia

• Carboxylic acid

• Hydroxide ion

• Water

What is the pKa value of the carboxylic acid mentioned in the video?

• 3

• 5

• 7

• 9

Which ion is formed as the conjugate acid in the reaction?

• Hydronium ion

• Ammonium ion

• Carboxylate anion

• Hydroxide ion

Why does the equilibrium favor the side with the weaker acid-base pair?

• Because the weaker acid has a higher tendency to donate protons

• Because the weaker acid has a lower tendency to donate protons

• Because the stronger acid has a lower tendency to donate protons

• Because the stronger acid has a higher tendency to donate protons