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
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 hydrogen ions and chloride ions. That is called dissociation. Strong acids dissociate more completely than weak acids, ...
What happens when weak acid reacts with strong base? When a weak acid reacts with a strong base, the weak acid donates its hydrogen ion (H+) to the hydroxide ion (OH-) of the strong base. Once donated, water is formed according to the generalization that the reaction of an acid and...
When titrating a weak acid with a strong base, I know that the pH at the equivalence point will be higher than pH 7, since the strong base releases all its OH- ions while the weak acid only disassociates partially. But here is my problem: wouldn't the OH- and H+ form water, and...
StrongAcid-WeakBaseand WeakAcid-StrongBase SlowchangeinpHbefore equivalencepoint;solution isabuffer CH 3 COOH(aq)/CH 3 COO - (aq) Athalfwaypoint [HA]=[A - ] pH=pK a Atequivalence,pH determinedbyCH 3 COO - (aq) CH 3 COOH(aq)+OH - (aq)->CH 3 COO - (aq)+H 2 O(l) Changes...
This weak acid-strong base type charge-mosaic membrane exhibited quite high ion selectivity in comparison with previous strong acid-strong base type charge-mosaic membranes. 展开 DOI: 10.1016/S0376-7388(00)85098-X 被引量: 30 年份: 1989
更新1: In this formular: eg of weak base: NH3 + H2O --- NH3+ + OH- Where did the another H+ went to?strong acid donates H+ and weak acid doesn't refuse to donate H+ weak acid also donates H+. no matter strong acid or weak acid when a substance in solu...
The flowmeter is all made of corrosion-resistant materials acid, alkali and various solvents, suitable for Accurate meter for various chemical media with medium and low viscosity that cannot be in contact with metals such as stainless steel the amount. Used in the chemical industry or reactor flow...
Weak acid-strong base type charge-mosaic membrane: 1. Carboxylic acid-quaternary amine system[J].Journal of Membrane Science,1989.205-216.doi:10.1016/S0376-7388(00)85098-X.Isono, Y., Ito, H., Hirahara, K., Fujimoto, T., Miyaki, Y., "Weak acid-strong base type charge mosaic membrane...
Calculation of pH of a Buffer Solution {eq}{/eq} An acidic buffer is the solution of mixture of a weak acid and a salt of weak acid and strong base. Using the Henderson-Hasselbalch Equation, we can determine the pH of such a bu...