Weak Base Definition and Examples

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

ELLA MARU STUDIO / Getty Images
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
3D illustration of sodium hydroxide.
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By Anne Marie Helmenstine, Ph.D.

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, Jun. 25, 2024, thoughtco.com/definition-of-weak-base-604688. Helmenstine, Anne Marie, Ph.D. (2024, June 25). 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 July 20, 2024).