IGCSE chemistrystrong and weak acids 强酸和弱酸strong and weak bases 强碱和弱碱, 视频播放量 237、弹幕量 0、点赞数 5、投硬币枚数 0、收藏人数 1、转发人数 4, 视频作者 Lisa郎老师, 作者简介 隔过星辰大海,无畏世俗与尘埃,相关视频:8.3 half-equations in electro
An acid with a pH approaching 7 is a weak acid. A substance with a pH of 7 is neutral, as we have learned. As the pH of a substance rises from 7, it turns from a weak base to a strong base. A strong acid such as HCl, when mixed with water, will separate into molecules of ...
Would HCl and NaOH generate a salt derived from a weak acid and a weak base? Explain.Question:Would HCl and NaOH generate a salt derived from a weak acid and a weak base? Explain.Acid-base Reaction:A chemical reaction in which both acid and base take part to pr...
The results show evidence that the weak acid-base properties of Cys-His are intrinsically linked and can result in an intramolecular salt-bridged network that affects the oligopeptide properties. 展开 关键词: 2His-2Cys motif Peptide tertiary structure Histidine charge state Cysteine charge state ...
The solubility displays that ionic liquid is miscible with organic solvents such as water,ethanol,ethyl ester and so on. The results of IR show that the ionic liquid has the character peaks of phenol and acetamide. 展...
pH-fixed titration method for the determination of weak acids andbases has been studied in this paper.It is not necessary to know theionization constant of weak acid or base and the concentration of titrant.This method had been applied to determine phenol,4-aminoantipyrine andglycine...
Answer to: Why does a strong acid and weak base result in a pH lower than 7, and does a weak acid and strong base result in a pH higher than 7? By...
In an aqueous solution or water, a weak acid partially dissociates into its ions. When a strong acid is submerged in water, it entirely dissociates into its ions. The conjugate base of a weak acid is a weak base, and the conjugate acid of a weak acid is a weak acid. At the same ...
The resulting membrane behaved as a charge-mosaic membrane at higher pH values and as an anion-exchange membrane at lower pH values, the behavior corresponding to the degree of dissociation of the carboxyl group. This weak acid-strong base type charge-mosaic membrane exhibited quite high ion ...
The determination of the pKa of multiprotic, weak acids by analyzing potentiometric acid-base titration data with difference plots This paper discusses the pKa determination of mono-, di-, and triprotic weak acids with the help of difference (Bjerrum) plots, and the effect of strong ac... A...