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A conjugate acid, within the Brønsted–Lowry acid–base theory, is a chemical compound formed when an acid gives a proton (H +) to a base—in other words, it is a base with a hydrogen ion added to it, as it loses a hydrogen ion in the reverse reaction.
Deprotonation (or dehydronation) is the removal (transfer) of a proton (or hydron, or hydrogen cation), (H +) from a Brønsted–Lowry acid in an acid–base reaction. [1] [2] The species formed is the conjugate base of that acid. The complementary process, when a proton is added (transferred) to a Brønsted–Lowry base, is protonation (or ...
H 2 O is a base because it accepts a proton from CH 3 COOH and becomes its conjugate acid, the hydronium ion, (H 3 O +). [9] The reverse of an acid–base reaction is also an acid–base reaction, between the conjugate acid of the base in the first reaction and the conjugate base of the acid.
In chemistry, a Lewis conjugate may refer to: The conjugate acid of a Lewis base or the conjugate base of a Lewis acid A molecule having a conjugated system of bonds in its Lewis structure
A weak acid or the conjugate acid of a weak base can be treated using the same formalism. Acid HA: HA ⇌ H + + A −; Base A: HA + ⇌ H + + A; First, an acid dissociation constant is defined as follows. Electrical charges are omitted from subsequent equations for the sake of generality
As usual, a weaker acid has a stronger conjugate base. Examples of Lewis bases based on the general definition of electron pair donor include: simple anions, such as H − and F −; other lone-pair-containing species, such as H 2 O, NH 3, HO −, and CH 3 −; complex anions, such as sulfate; electron-rich π-system Lewis bases, such as ethyne ...
Chloroauric acid is an inorganic compound with the chemical formula H[AuCl 4]. It forms hydrates H[AuCl 4]·nH 2 O. Both the trihydrate and tetrahydrate are known. Both are orange-yellow solids consisting of the planar [AuCl 4] − anion. Often chloroauric acid is handled as a solution, such as those obtained by dissolution of gold in aqua regia.
For example, pK a for HClO is 7.2, for HClO 2 is 2.0, for HClO 3 is −1 and HClO 4 is a strong acid (pK a ≪ 0). [7] The increased acidity on adding an oxo group is due to stabilization of the conjugate base by delocalization of its negative charge over an additional oxygen atom. [ 47 ]