Conjugate Base
Definition
The conjugate base is what remains of an acid after it has donated its proton during an acid-base reaction.
Analogy
Imagine you've just given your friend one of your books to borrow. Now, your book collection is like a conjugate base - it's what's left after you've given something away.
Related terms
Conjugate Acid: The particle formed when a base accepts a proton.
Acid-Base Pair: An acid and its corresponding conjugate base or a base and its corresponding conjugate acid.
pH Scale: A measure of how acidic or basic a solution is, based on the concentration of H+ ions. It can help predict whether an acid will donate protons (forming a conjugate base) or a base will accept protons (forming a conjugate acid).
"Conjugate Base" appears in:
Study guides (9)
AP Chemistry - 4.6 Introduction to Titration
AP Chemistry - 7.13 pH and Solubility
AP Chemistry - 8.3 Weak Acid and Base Equilibria
AP Chemistry - 8.4 Acid-Base Reactions and Buffers
AP Chemistry - 8.6 Molecular Structures of Acids and Bases
AP Chemistry - 8.7 pH and pKa
AP Chemistry - 8.8 Properties of Buffers
AP Chemistry - 8.9 Henderson-Hasselbalch Equation
AP Chemistry - 8.10 Buffer Capacity
Practice Questions (7)
- What is the conjugate base of HCl?
- What is a conjugate base?
- What is a conjugate base?
- What is the conjugate base of H2S?
- For the equation HOBr + OH⁻ ⇌ H2O + OBr⁻, which of the following pairs contain both the base and the conjugate base of the reaction?
- Which of the following is the conjugate base for the acid HBrO?
- A solution of acetic acid has a pH of 6.75. The ratio of acid to conjugate base is _______________. (pKa = 4.75)
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