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Multiple Choice
Which of the following compounds is considered a strong acid in aqueous solution?
A
Ammonia (NH3)
B
Hydrochloric acid (HCl)
C
Acetic acid (CH3COOH)
D
Water (H2O)
Verified step by step guidance
1
Identify the nature of each compound listed: Ammonia (NH3), Hydrochloric acid (HCl), Acetic acid (CH3COOH), and Water (H2O).
Understand the concept of acid strength: A strong acid is one that completely dissociates in water, releasing a high concentration of hydrogen ions (H+).
Evaluate Hydrochloric acid (HCl): It is a well-known strong acid because it completely dissociates in water to form H+ and Cl- ions.
Consider Acetic acid (CH3COOH): It is a weak acid because it only partially dissociates in water, resulting in a lower concentration of H+ ions.
Review Ammonia (NH3) and Water (H2O): Ammonia is a weak base, not an acid, and water is neutral, neither a strong acid nor a strong base.