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Multiple Choice
Which of the following is a characteristic of a strong acid in aqueous solution?
A
It has a high pH value.
B
It partially dissociates into ions.
C
It completely dissociates into ions.
D
It forms a weak conjugate base.
Verified step by step guidance
1
Understand the concept of a strong acid: A strong acid is one that completely dissociates into its ions in an aqueous solution.
Consider the pH value: Strong acids typically have low pH values, not high, because they increase the concentration of hydrogen ions (H⁺) in solution.
Evaluate dissociation: Strong acids completely dissociate, meaning they release all their hydrogen ions into the solution, unlike weak acids which only partially dissociate.
Analyze the conjugate base: The conjugate base of a strong acid is weak because the strong acid has donated its proton completely, leaving behind a base that does not readily accept protons.
Summarize the characteristics: A strong acid in aqueous solution is characterized by complete dissociation into ions, resulting in a low pH and a weak conjugate base.