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30 mar 2019 · Definition: A weak base is a base that is partially dissociated in an aqueous solution.
A weak base is a base that, upon dissolution in water, does not dissociate completely, so that the resulting aqueous solution contains only a small proportion of hydroxide ions and the concerned basic radical, and a large proportion of undissociated molecules of the base.
A weak base is a type of base that only partially dissociates in an aqueous solution, producing a relatively low concentration of hydroxide ions. This is in contrast to strong bases, which completely dissociate in water, producing a high concentration of hydroxide ions.
A weak base is a chemical species that has the ability to accept a proton (H+) in an aqueous solution, forming a conjugate acid-base pair. Weak bases are less likely to completely ionize compared to strong bases, and their degree of ionization is dependent on the pH of the solution.
Weak bases only partially ionize in solution, unlike strong bases that fully dissociate. This partial ionization means that weak bases produce fewer hydroxide ions compared to strong bases, resulting in a less dramatic effect on pH levels.
19 cze 2021 · A weak base incompletely dissociates into its ions, so that the resulting aqueous solution contains weak base, its conjugate acid, and water. Strong base: BOH + H 2 O → B + (aq) + OH – (aq) The strong bases are classic Arrhenius bases made from alkali or alkaline earth metals and hydroxide ions.
12 lip 2023 · Weak bases react with water to produce the hydroxide ion, as shown in the following general equation, where B is the parent base and BH+ is its conjugate acid: B(aq) + H 2O(l) − ⇀ ↽ − BH + (aq) + OH − (aq) The equilibrium constant for this reaction is the base ionization constant (Kb), also called the base dissociation constant:
