Jove
Visualize
联系我们

相关概念视频

Solvents01:12

Solvents

64.0K
A solvent is a substance, most often a liquid, that can dissolve other substances. Here, the substance being dissolved is called a solute. When a solvent and a solute combine, they form a solution - a homogenous mixture of both the solvent and the solute. Water is a universal biological solvent. Its polar structure allows it to dissolve many other polar compounds. The ability of water to dissolve is governed by a balance between water molecules binding to each other and binding to the solute.
A...
64.0K
Titration in Nonaqueous Solvents01:16

Titration in Nonaqueous Solvents

704
Most acid-base titrations are performed in an aqueous medium. In aqueous titrations, water competes with weaker acids or bases for proton donation or acceptance, leading to ambiguous endpoints in the titration curve. Water also affects the partial ionization of weak acids or bases. For example, water accepts a proton from acetic acid to form hydronium and acetate ions. The hydronium ion formed is a stronger acid than acetic acid, and the acetate ion is a stronger base than water. As a result,...
704
Solution Formation02:16

Solution Formation

31.0K
There is no one solvent that can dissolve every type of solute. Some substances that readily dissolve in a certain solvent might be insoluble in a different solvent. A simple way to predict which substances dissolve in which solvent is the phrase "like dissolves like". This means that polar substances, such as salt and sugar, dissolve in a polar substance like water. In contrast, non-polar substances are more soluble in non-polar solvents such as carbon tetrachloride.
This selective...
31.0K
Electrolyte and Nonelectrolyte Solutions02:21

Electrolyte and Nonelectrolyte Solutions

62.0K
Substances that undergo either a physical or a chemical change in solution to yield ions that can conduct electricity are called electrolytes. If a substance yields ions in solution, that is, if the compound undergoes 100% dissociation, then the substance is a strong electrolyte. Complete dissociation is indicated by a single forward arrow. For example, water-soluble ionic compounds like sodium chloride dissociate into sodium cations and chloride anions in aqueous solution.
62.0K
Molecular Shape and Polarity03:37

Molecular Shape and Polarity

59.4K
Dipole Moment of a Molecule
59.4K
Solubility03:00

Solubility

17.2K
Solution, Solubility, and Solubility Equilibrium
A solution is a homogeneous mixture composed of a solvent, the major component, and a solute, the minor component. The physical state of a solution—solid, liquid, or gas—is typically the same as that of the solvent. Solute concentrations are often described with qualitative terms such as dilute (of relatively low concentration) and concentrated (of relatively high concentration).
In a solution, the solute particles (molecules,...
17.2K

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

Taffit: An Excel Tool for Fitting Tafel Data.

ACS measurement science au·2025
Same author

Magnetoelectrocatalysis: Evidence from the Hydrogen Evolution Reaction.

ACS physical chemistry Au·2024
Same author

Why Sonochemistry in a Thin Layer? Constructive Interference.

The journal of physical chemistry. C, Nanomaterials and interfaces·2023
Same author

Redox Potentials of Magnetite Suspensions under Reducing Conditions.

Environmental science & technology·2022
Same author

Impacts of Surface Adsorption on Water Uptake within a Metal Organic Nanotube Material.

Langmuir : the ACS journal of surfaces and colloids·2022
Same author

Convenient Syntheses of Trivalent Uranium Halide Starting Materials without Uranium Metal.

Inorganic chemistry·2021
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关实验视频

Updated: May 21, 2025

1,3,5-Triphenylbenzene and Corannulene as Electron Receptors for Lithium Solvated Electron Solutions
06:56

1,3,5-Triphenylbenzene and Corannulene as Electron Receptors for Lithium Solvated Electron Solutions

Published on: October 10, 2016

7.7K

薄层声电化学:溶剂的使用

Nadeesha P W Rathuwadu1, Daniel L Parr1, Johna Leddy1

  • 1Department of Chemistry, University of Iowa, Iowa City, Iowa 52240 United States.

The journal of physical chemistry. C, Nanomaterials and interfaces
|March 19, 2025
PubMed
概括
此摘要是机器生成的。

薄层声电化学 (TLS) 使用超声波来提高接口反应速率. 一个经过验证的模型表明,溶剂性质在定量上预测了非水性溶剂中的这些速率增强.

更多相关视频

Electrochemical Preparation of Poly3,4-Ethylenedioxythiophene Layers on Gold Microelectrodes for Uric Acid-Sensing Applications
10:48

Electrochemical Preparation of Poly3,4-Ethylenedioxythiophene Layers on Gold Microelectrodes for Uric Acid-Sensing Applications

Published on: July 28, 2021

3.8K
Total Internal Reflection Absorption Spectroscopy TIRAS for the Detection of Solvated Electrons at a Plasma-liquid Interface
08:50

Total Internal Reflection Absorption Spectroscopy TIRAS for the Detection of Solvated Electrons at a Plasma-liquid Interface

Published on: January 24, 2018

13.6K

相关实验视频

Last Updated: May 21, 2025

1,3,5-Triphenylbenzene and Corannulene as Electron Receptors for Lithium Solvated Electron Solutions
06:56

1,3,5-Triphenylbenzene and Corannulene as Electron Receptors for Lithium Solvated Electron Solutions

Published on: October 10, 2016

7.7K
Electrochemical Preparation of Poly3,4-Ethylenedioxythiophene Layers on Gold Microelectrodes for Uric Acid-Sensing Applications
10:48

Electrochemical Preparation of Poly3,4-Ethylenedioxythiophene Layers on Gold Microelectrodes for Uric Acid-Sensing Applications

Published on: July 28, 2021

3.8K
Total Internal Reflection Absorption Spectroscopy TIRAS for the Detection of Solvated Electrons at a Plasma-liquid Interface
08:50

Total Internal Reflection Absorption Spectroscopy TIRAS for the Detection of Solvated Electrons at a Plasma-liquid Interface

Published on: January 24, 2018

13.6K

科学领域:

  • 电化学 电化学 电化学
  • 物理化学 物理化学
  • 声化学 声化学 声化学

背景情况:

  • 薄层声电化学 (TLS) 提高了使用超声波的界面反应速度.
  • 在TLS中的超声波会产生构造性干扰,增加反应速度而无需化或加热.
  • 有一个模型可以预测溶剂特性如何影响TLS速率.

研究的目的:

  • 为了验证一个模型,预测溶剂性质对TLS率的影响.
  • 用电压测量来研究各种溶剂的速度增强.
  • 确认该模型对非水性溶剂的适用性.

主要方法:

  • 进行了薄层声电化学 (TLS) 实验.
  • 电压测量用于测量Fe3+和金的界面速率.
  • 实验中使用了四二,二甲基形式胺,水,乙醇和2-醇进行了实验,有和没有超声波.

主要成果:

  • 在TLS实验中,超声波测试期间和之后,接口速率增加.
  • 在不同的溶剂中,提高速率的差异很大.
  • 观察到的速率提升量上与模型预测一致.
  • 在流体层中没有检测到化或加热效应.

结论:

  • 之前开发的TLS模型根据溶剂特性准确预测了速率的提高.
  • 该模型经过验证,可用于非水性溶剂.
  • TLS是一种可行的技术,可以加速缓慢的界面反应.