Acid dissociation constant
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Examples
Lessons
- Use the relationship between the Ka and Kw expressions to find an unknown Kb value.
- Ethanoic acid, or acetic acid CH3COOH is a weak acid with Ka = 1.4*10-5.1
- Write the formula of its conjugate base.
- Find the Kb for its conjugate base using the relationship between Ka/Kb and Kw.
- Explain using the Ka/Kb expression why Ka and Kb values are not normally used when studying strong acids and bases.
1 Source for Ka acid dissociation constants: ATKINS, P. W., & DE PAULA, J. (2006). Atkins' Physical chemistry. Oxford, Oxford University Press.
- Ethanoic acid, or acetic acid CH3COOH is a weak acid with Ka = 1.4*10-5.1