| 词汇 | weak-acid |
| 释义 | weak acid noun[ C ] chemistry specializeduk /ˈwiːk ˌæs.ɪd/ us /ˈwiːk ˌæs.ɪd/ an acid with a pH of 5 or 6 whose molecules do not break down into smaller molecules or atoms in water弱酸 Chemistry: types of chemical acid salt aerogel albumin alkali metal alkaline alkaloid antioxidant carbohydrate homologous series inorganic isopropanol ketone lectin melamine monosaccharide mothball propellant saline soluble sulphide weak acid | American Dictionaryweak acid noun[ C ] us/ˈwik ˈæs·ɪd/ chemistry an acid with a pH of 5 or 6 whose molecules do not break down into smaller molecules or atoms in water Examples of weak acidweak acid By contrast, the application of sodium butyrate (weakacid) caused a fall in the ratio. What makes these compounds basic is that the conjugate base from the weakacid hydrolyzes to form a basic solution. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The electrolytes are generally composed of a weakacid, a salt of weakacid, and a solvent, and optional thickening agent and other additives. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The latter is treated with an alcohol respective to the desired phosphite protecting group, for instance, 2-cyanoethanol, in the presence of a weakacid. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. This is due to the fact that symptoms of these patients are the results of weakacid or non-acid reflux. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. A complicating factor is that water itself is a weakacid and a weak base. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Didanosine has weakacid stability and is easily damaged by stomach acid. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Titrations between a weakacid and a weak base have titration curves which are highly irregular. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The sloog contains a weakacid that slows the expansion of the polymer so that the growth appears to occur over several days. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. In contrast, a weakacid only partially dissociates and at equilibrium both the acid and the conjugate base are in solution. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. In the simplest case, the weakacid is the only compound in water. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Upon protonation, the unstable weakacid nitrous acid is produced. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The end product, humus, is soluble in water and forms a weakacid that can attack silicate minerals. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. A weakacid dissolves calcite from crushed limestone, leaving only dolomite, silicates, or quartz. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. It is usually prepared as an aqueous solution where it acts as a weakacid. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. See all examples of weak acid 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. |
| 随便看 |
|
反思网英语在线翻译词典收录了377474条英语词汇在线翻译词条，基本涵盖了全部常用英语词汇的中英文双语翻译及用法，是英语学习的有利工具。