Weak Base Definition and Examples

Acetic acid molecule
Acetic acid is an example of a weak base.

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By
Anne Marie Helmenstine, Ph.D.
Anne Marie Helmenstine, Ph.D.
Chemistry Expert
  • Ph.D., Biomedical Sciences, University of Tennessee at Knoxville
  • B.A., Physics and Mathematics, Hastings College
Dr. Helmenstine holds a Ph.D. in biomedical sciences and is a science writer, educator, and consultant. She has taught science courses at the high school, college, and graduate levels.
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Updated on March 30, 2019

Definition: A weak base is a base that is partially dissociated in an aqueous solution.

Examples: NH4OH

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Helmenstine, Anne Marie, Ph.D. "Weak Base Definition and Examples." ThoughtCo, Aug. 27, 2020, thoughtco.com/definition-of-weak-base-604688. Helmenstine, Anne Marie, Ph.D. (2020, August 27). Weak Base Definition and Examples. Retrieved from https://www.thoughtco.com/definition-of-weak-base-604688 Helmenstine, Anne Marie, Ph.D. "Weak Base Definition and Examples." ThoughtCo. https://www.thoughtco.com/definition-of-weak-base-604688 (accessed June 1, 2023).