| 词汇 | example_english_hydronium |
| 释义 | Examples of hydroniumThese examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. The hydronium cation, also known as hydroxonium is the positively charged polyatomic ion with the chemical formula. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. If an impurity is an acid or base this will affect the concentrations of hydronium ion and hydroxide ion. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Examples are the hydronium ion in water-based acids, and, the unstable cation of fluoroantimonic acid, the strongest superacid. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Hydronium ions are acids according to all three definitions. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. In the cation, three benzene molecules surround hydronium, forming pi-cation interactions with the hydrogen atoms. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Hydrogen ion channels detect the concentration of hydronium ions that are formed from acids and water. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The hydronium ion also forms stable compounds with the carborane superacid. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. While hydroiodic acid solutions are stable, the hydronium-astatide solution is clearly less stable than the water-hydrogen-astatine system. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The positive hydronium ions that approach the negative cathode mostly combine with negative hydroxyl ions to form water. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. One can see that the one positively charged hydronium molecule and one negatively charged hydroxide molecule have formed water, which has an electrovalency of zero. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The effective diameter for the hydronium ion is 9. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. In acidic solutions, hydronium is the more active, its excess proton being readily available for reaction with basic species. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. This special case of water reacting with water to produce hydronium (and hydroxide) ions is commonly known as the self-ionization of water. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Hydronium, on the other hand, has several transitions that make it a superior candidate for detection and identification in a variety of situations. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Superacids can permanently protonate water to give ionic, crystalline hydronium salts. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. At the same time the oxidizing reagent is spent for instance when hydrogen peroxide together with hydronium ions is reduced to water. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Often these compounds contain water, hydroxide, or hydronium ions in addition to cerium and nitrate. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. For example, carbon dioxide gas dissolves in water to produce a solution that contains hydronium, carbonate, and hydrogen carbonate ions. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. This leads to hydronium playing a very important role in interstellar ion-neutral chemistry. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. This generally means that in aqueous solution at standard temperature and pressure, the concentration of hydronium ions is equal to the concentration of strong acid introduced to the solution. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Despite the proton being called effectively naked, it is in fact always attached to a hydrogen fluoride molecule through a very weak dative bond, similar to the hydronium cation. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. It is structurally equivalent to the hydronium ion where the hydrogen atoms surrounding the central oxygen atom have been replaced by fluorine, and is isoelectronic with nitrogen trifluoride. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. This enolate may then encounter other ketones and the thermodynamic enolate will form through the exchange of protons, even in an aprotic solvent which does not contain hydronium ions. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. We now know that virtually all such free protons quickly react with water to form hydronium; acidity of an aqueous solution is therefore more accurately characterized by its hydronium concentration. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Salts that hydrolyze to produce hydroxide ions when dissolved in water are "basic salts", whilst those that hydrolyze to produce hydronium ions in water are "acidic salts". From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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