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Кислоты и основания Бренстеда-Лоури
The acid-base reaction class has been studied for quite some time. In 1680, Robert Boyle reported traits of acid solutions that included their…
Кислотно-щелочная сила и константы диссоциации
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…
Вода: кислота и основание Бренстеда-Лоури
The reaction between a Brønsted-Lowry acid and water is called acid ionization. For example, when hydrogen fluoride dissolves in water and…
шкала pH
Hydronium and hydroxide ions are present both in pure water and in all aqueous solutions, and their concentrations are inversely proportional as…
Относительные силы конъюгированных кислотно-основных пар
Brønsted-Lowry acid-base chemistry is the transfer of protons; thus, logic suggests a relation between the relative strengths of conjugate…
Сильные кислотные и щелочные растворы
A strong acid is a compound that dissociates completely in an aqueous solution and produces a concentration of hydronium ions equal to the initial…
Растворы слабой кислоты
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…
Растворы слабых оснований
Some compounds produce hydroxide ions when dissolved by chemically reacting with water molecules. In all cases, these compounds react only partially…
Смеси кислот
The pH of a solution containing an acid can be determined using its acid dissociation constant and its initial concentration. If a solution contains…
Ионы как кислоты и основания
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…
Определение pH солевых растворов
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…
Полипротонные кислоты
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…
Кислотная сила и молекулярная структура
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…
Кислоты и основания Льюиса
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…
Характеристика Льюис пары использованиетия титрации в сочетании с In Situ инфракрасной спектроскопии
Lewis acid-activation of carbonyl-containing substrates is a fundamental basis for facilitating transformations in organic chemistry. Historically,…
Настройка кислотности катализаторов Pt/ CNTs для гидродезоксигенации дифенилового эфира
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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