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Acidi e basi di Bronsted-Lowry
The acid-base reaction class has been studied for quite some time. In 1680, Robert Boyle reported traits of acid solutions that included their…
Forze acido / base e costanti di dissociazione
The relative strength of an acid or base is the extent to which it ionizes when dissolved in water. If the ionization reaction is essentially…
Acqua: un acido e una base Bronsted-Lowry
The reaction between a Brønsted-Lowry acid and water is called acid ionization. For example, when hydrogen fluoride dissolves in water and…
Scala del pH
Hydronium and hydroxide ions are present both in pure water and in all aqueous solutions, and their concentrations are inversely proportional as…
Punti di forza relativi delle coppie coniugate acido-base
Brønsted-Lowry acid-base chemistry is the transfer of protons; thus, logic suggests a relation between the relative strengths of conjugate…
Soluzioni forti di acidi e basi
A strong acid is a compound that dissociates completely in an aqueous solution and produces a concentration of hydronium ions equal to the initial…
Soluzioni di acidi deboli
Few compounds act as strong acids. A far greater number of compounds behave as weak acids and only partially react with water, leaving a large…
Soluzioni di basi deboli
Some compounds produce hydroxide ions when dissolved by chemically reacting with water molecules. In all cases, these compounds react only partially…
Miscele di acidi
The pH of a solution containing an acid can be determined using its acid dissociation constant and its initial concentration. If a solution contains…
Ioni come acidi e basi
Salts with Acidic Ions Salts are ionic compounds composed of cations and anions, either of which may be capable of undergoing an acid or base…
Determinazione del pH delle soluzioni saline
The pH of a salt solution is determined by its component anions and cations. Salts that contain pH-neutral anions and the hydronium ion-producing…
Acidi poliprotici
Acids are classified by the number of protons per molecule that they can give up in a reaction. Acids such as HCl, HNO3, and HCN that contain one…
Forza acida e struttura molecolare
Binary Acids and Bases In the absence of any leveling effect, the acid strength of binary compounds of hydrogen with nonmetals (A) increases as the…
Acidi e Basi di Lewis
In 1923, G. N. Lewis proposed a generalized definition of acid-base behavior in which acids and bases are identified by their ability to accept or to…
Caratterizzare le coppie lewis usando la titolazione accoppiata con la spettroscopia a infrarossi in Situ
Lewis acid-activation of carbonyl-containing substrates is a fundamental basis for facilitating transformations in organic chemistry. Historically,…
Sedimentazione equilibrio di una membrana Piccolo Oligomer-forming Proteine: Effetto di istidina protonazione su pentamerica stabilità
Analytical ultracentrifugation (AUC) can be used to study reversible interactions between macromolecules over a wide range of interaction strengths…
Ottimizzazione dell'acidità dei catalizzatori Pt/ CNT per l'idrogenatossiosa di Diphenyl Ether
We herein present a method for the synthesis of HNbWO6, HNbMoO6, HTaWO6 solid acid nanosheet modified Pt/CNTs. By varying the weight of various solid…

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