aThe methanol was evaporated under reduced pressure in a nitrogen atmosphere and the small amount of hydrochloric acid remaining was neutralized with potassium hydroxide. 甲醇在氮气大气在减压下被蒸发了,并且小量的盐酸余留中立化与氢氧化钾。[translate] ...
What makes hydrofluoric acid dangerous?Dangers of Hydrofluoric Acid:Hydrofluoric acid is commonly used to make substances with fluorine-containing compounds, such as pharmaceutical drugs or compounds like Teflon and freon. It is considered a weak acid, but has severe implications for health and safety...
xothermic and the solution may become warm 相关知识点: 试题来源: 解析 D。中文解析:当盐酸加入氢氧化钠溶液中时,反应是放热的,溶液可能会变热,文章中提到“When hydrochloric acid is added to sodium hydroxide solution, the reaction is exothermic and the solution may become warm.”。 反馈 收藏 ...
The prefix ''hydro'' in hydrosulfuric acid tells us that this is a binary acid. ''Bi'' means 2, which means there are two elements in the formula for... See full answer below.Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question...
The neutralised solution performs a redox reaction on Fehling's reagent, so the result is the red precipitate. First of all, I am interested as to why the heating aqueous solution of sucrose and hydrochloric acid result in the occurrence of foaming. Why does the sod...
In agriculture, what is sometimes added to acidic soil? A. Sodium hydroxide B. Hydrochloric acid C. Lime D. Sodium chloride 相关知识点: 试题来源: 解析 C。中文解析:文中提到在农业中,有时会向酸性土壤中添加石灰(一种碱)来中和酸度,改善土壤条件以利于植物生长。
A new method for preparing D-Glucosamine hydrochloride using chitosan is provided in CN101210035A. The method includes hydrolysis with hydrochloric acid, cooling crystallization of the mother liquor, filtration and concentration of the filtrate, cooling crystallization of the concentrate, decolorization, ...
to 100 ℃ steam sterilization 30min circulation is appropriate, and should pay attention to shading, sealed save.The product structure of aromatic primary amino group in dilute hydrochloric acid can generate diazonium salt with sodium nitrite, coupling reaction occurs when add alkaline β-naphthol, ...
What is the most acidic hydrogen in vitamin c? Vitamin C (ascorbic acid)Organic AcidsAcids are defined as the compounds which have a tendency to donate Hydrogen ion. The strength of acids depends on the ease of removal of Hydrogen ion. Organic acids are generally mild acids....
Arrhenius acids include hydrofluoric acid (HF), hydrochloric acid (HCl), acetic acid (CH3COOH) and citric acid (C6H8O7) What is an Arrhenius acid in chemistry? An Arrhenius acid dissociates in an aqueous solution to form hydrogen protons (H+). The protons quickly react with water to ...