An acidity function is a measure of the acidity of a medium or solvent system, usually expressed in terms of its ability to donate protons to (or accept...

The Hammett acidity function (H0) is a measure of acidity that is used for very concentrated solutions of strong acids, including superacids. It was proposed...

definition) is an acid with an acidity greater than that of 100% pure sulfuric acid (H2SO4), which has a Hammett acidity function (H0) of −12. According to...

times stronger than pure sulfuric acid when measured by its Hammett acidity function. It even protonates some hydro­carbons to afford pentacoordinate carbo­cations...

other polymeric species, H n−1F− n, is highly likely. The Hammett acidity function, H0, for 100% HF was first reported as -10.2, while later compilations...

In chemistry, an acid dissociation constant (also known as acidity constant, or acid-ionization constant; denoted ⁠ K a {\displaystyle K_{a}} ⁠) is a...

strict definition refers only to the solute. A lower pH means a higher acidity, and thus a higher concentration of positive hydrogen ions in the solution...

halochromic chemical compound added in small amounts to a solution so the pH (acidity or basicity) of the solution can be determined visually or spectroscopically...

times stronger than 100% pure sulfuric acid in terms of their Hammett acidity function values (H0 ≤ –18) and possess computed pKa values well below –20, establishing...

solute (most commonly a weak aniline base) is measured by its Hammett acidity function, the H 0 {\displaystyle H_{0}} value. Although these two concepts of...

emphasize the kinetic aspect of reactivity, while the Lewis basicity and Lewis acidity emphasize the thermodynamic aspect of Lewis adduct formation. In many cases...

acidic solution (and the generation of carbonic acid) when dissolved. The acidity of an oxide can be reasonably assumed by its accompanying constituents...

H3BO3 Perchloric acid HClO4 Hydrogen cyanide HCN Boyd, Claude E. (2020). "Acidity". Water Quality: 215–231. doi:10.1007/978-3-030-23335-8_11. ISBN 978-3-030-23334-1...

as acidity or basicity, historically denotes "potential of hydrogen" (or "power of hydrogen"). It is a logarithmic scale used to specify the acidity or...

− {\displaystyle {\ce {NH3 + H2O -> NH4+ + OH-}}} From this, a pH, or acidity, can be calculated for aqueous solutions of bases. A base is also defined...

Hammett acidity function. For instance, sulfuric acid, H2SO4, has a Hammett acidity function, H0, of −12, perchloric acid, HClO4, has a Hammett acidity function...

Non-Aqueous Solvents. Pergamon Press. Reich, Hans J. "Bordwell pKa Table (Acidity in DMSO)". Department of Chemistry, University of Wisconsin, U.S. Archived...

709–729. doi:10.1016/0002-9343(58)90376-0. Guide to Weak Bases from Georgetown course notes Article on Acidity of Solutions of Weak Bases from Intute...

chemists seek the proton-removing ability of a base without any other functions. Typical non-nucleophilic bases are bulky, such that protons can attach...

properties. The most common organic acids are the carboxylic acids, whose acidity is associated with their carboxyl group –COOH. Sulfonic acids, containing...

aqueous solution in Wiktionary, the free dictionary. Acid–base reaction Acidity function Dissociation (chemistry) Drug permeability Inorganic nonaqueous solvent...

affinities illustrate the role of hydration in aqueous-phase Brønsted acidity. Hydrofluoric acid is a weak acid in aqueous solution (pKa = 3.15) but...

in chemistry and biology, aiding in the determination of a solution's acidity or alkalinity through the observation of colour transitions. The table...

strength Acidity function Amphoterism Base Buffer solutions Dissociation constant Donor number Equilibrium chemistry Extraction Hammett acidity function pH...

acids. However, Davy failed to develop a new theory, concluding that "acidity does not depend upon any particular elementary substance, but upon peculiar...

solution. In biological systems this is an essential condition for enzymes to function correctly. For example, in human blood a mixture of carbonic acid (H 2CO...

strength Acidity function Amphoterism Base Buffer solutions Dissociation constant Donor number Equilibrium chemistry Extraction Hammett acidity function pH...

buffer, which prevents drastic pH changes when CO 2 is introduced. This functions as such: CO 2 + H 2 O ↽ − − ⇀ H 2 CO 3 ↽ − − ⇀ HCO 3 − + H + {\displaystyle...

action of carbonic anhydrase. When the extracellular fluids tend towards acidity, the renal tubular cells secrete the H+ ions into the tubular fluid from...

strength Acidity function Amphoterism Base Buffer solutions Dissociation constant Donor number Equilibrium chemistry Extraction Hammett acidity function pH...