Conjugate Acid-Base Pairs Worksheet
Explore the concepts of conjugate acid-base pairs, Brønsted-Lowry theory, and their applications in chemical reactions.
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Conjugate Acid-Base Pairs
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Read each question carefully and provide your best answer. For multiple-choice questions, circle the correct option. For short answer questions, write your response in the space provided.
1. According to the Brønsted-Lowry definition, an acid is a substance that:
Donates a hydroxide ion
Accepts a proton
Donates a proton
Produces H+ ions in solution
2. What is the conjugate base of H₂SO₄?
SO₄²⁻
HSO₄⁻
H₃SO₄⁺
H₂SO₃
1. A conjugate acid-base pair consists of two substances that differ by only one .
2. In the reaction HCl + H₂O ⇌ H₃O⁺ + Cl⁻, H₂O acts as a .
3. An amphoteric substance can act as both an acid and a .
1. Define a conjugate acid and a conjugate base. How are they related?
2. Identify the conjugate acid-base pairs in the following reaction:
NH₃ + H₂O ⇌ NH₄⁺ + OH⁻
1. A strong acid has a weak conjugate base.
True
False
2. The conjugate acid of a weak base is always a strong acid.
True
False
Consider the image below representing a general acid-base reaction. Identify the acid, base, conjugate acid, and conjugate base.
Acid:
Base:
Conjugate Acid:
Conjugate Base: