BIOL 221 Lecture Notes - Lecture 12: Sodium Bicarbonate, Sodium Hydroxide, Alkalosis
5 Mar 2020
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Usually inorganic (e. g. , hcl, koh, naoh, nh3) Large changes in ph when added to unbuffered solutions. The term strength as applied to acids and bases refers to their ability to ionize, or dissociate, into cations and anions. Strong acids or bases dissociate readily and completely; strong acids or bases are usually inorganic (e. g. , acids: hcl, h2so4; bases: koh, naoh, nh3). These cause large changes in ph when added to unbuffered solutions. E. g. , lactic acid, amino acids, fatty acids, nitrogen bases (dna/rna), nahco3, h2co3. Weak acids or bases do not completely ionize; that is, some remains in molecular form in solution. Equilibrium is reached in which the reaction forming the acid or base occurs at the same rate as dissociation. Equilibrium is affected by addition of hydrogen ions (h+) or anions from other sources. Weak acids or bases are usually organic. Examples of weak acids include lactic acid, amino acids, and fatty acids.
