Jove
Visualize
お問い合わせ
JoVE
x logofacebook logolinkedin logoyoutube logo
JoVEについて
概要リーダーシップブログJoVEヘルプセンター
著者向け
出版プロセス編集委員会範囲と方針査読よくある質問投稿
図書館員向け
推薦の声購読アクセスリソース図書館諮問委員会よくある質問
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experimentsアーカイブ
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教員リソースセンター教員サイト
利用規約
プライバシーポリシー
ポリシー

関連する概念動画

Polyprotic Acids03:38

Polyprotic Acids

Acids are classified by the number of protons per molecule that they can give up in a reaction. Acids such as HCl, HNO3, and HCN that contain one ionizable hydrogen atom in each molecule are called monoprotic acids. Their reactions with water are:
Mixtures of Acids03:27

Mixtures of Acids

The pH of a solution containing an acid can be determined using its acid dissociation constant and its initial concentration. If a solution contains two different acids, then its pH can be determined using one of several methods depending upon the relative strength of the acids and their dissociation constants.
A Mixture of a Strong Acid and a Weak Acid
In a mixture of a strong acid and a weak acid, the strong acid dissociates completely and becomes a source of almost all the hydronium ions...
Mixtures of Acids01:19

Mixtures of Acids

The pH of a solution containing an acid can be determined using its acid dissociation constant and initial concentration. If a solution contains two different acids, then its pH can be determined using one of several methods depending on the relative strength of the acids and their dissociation constants.
In a strong and weak acid mixture, the strong acid dissociates completely and becomes a source of almost all the hydronium ions present in the solution. In contrast, the weak acid shows...
Acid Suppressive Drugs for Peptic Ulcer Disease: Antacids01:31

Acid Suppressive Drugs for Peptic Ulcer Disease: Antacids

In the complex environment of the gastric lumen, excessive acid secretion can lead to the formation or worsening of ulcers within the delicate mucosal layer. Antacids, such as sodium bicarbonate and calcium carbonate, provide relief by neutralizing this acid, transforming it into harmless salt and water. This neutralization process raises the gastric pH from a highly acidic level of 1 to a more basic 3-4, reducing the acidity within the stomach.
However, this neutralization reaction between...
Acids, Bases and Neutralization Reactions01:27

Acids, Bases and Neutralization Reactions

Acids and bases play several important roles in biology. The pH of a biological system can significantly impact the function of biological molecules, including enzymes, proteins, and nucleic acids. For example, enzymes have optimal pH ranges for their activity, and changes in pH can denature or alter their structure, affecting their function. Acids and bases also play a crucial role in cellular signaling and communication. The pH of the extracellular fluid around cells can influence the...
Acids, Bases and Neutralization Reactions03:26

Acids, Bases and Neutralization Reactions

An acid-base reaction is one in which a hydrogen ion, H+, is transferred from one chemical species to another. Such reactions are of central importance to numerous natural and technological processes, ranging from the chemical transformations within cells or lakes and oceans to the industrial-scale production of fertilizers, pharmaceuticals, and other substances essential to the society.

こちらも読む

関連記事

共著者、ジャーナル、引用グラフによってこの研究に関連する記事。

並び替え
Same author

The ANCog: A French self-report scale for assessing subjective cognitive complaints in rehabilitation samples.

Psychiatry research·2025
Same author

"Optimal timing for RNA isolation: Recommendations for placenta sample collection under clinical conditions".

Placenta·2025
Same author

Collapsing Glomerulopathy Superimposed on Diabetic Nephropathy.

Saudi journal of kidney diseases and transplantation : an official publication of the Saudi Center for Organ Transplantation, Saudi Arabia·2023
Same author

A Case of Hearing Impairment with Renal Dysfunction.

Indian journal of nephrology·2021
Same author

Hevea brasiliensis mediated synthesis of nanocellulose: Effect of preparation methods on morphology and properties.

International journal of biological macromolecules·2020
Same author

The sacral chordoma margin.

European journal of surgical oncology : the journal of the European Society of Surgical Oncology and the British Association of Surgical Oncology·2020

関連する実験動画

Updated: Jul 12, 2026

Unveiling Histone Proteoforms using 2D-TAU Gel Electrophoresis
07:20

Unveiling Histone Proteoforms using 2D-TAU Gel Electrophoresis

Published on: October 18, 2024

スーパアシドは,超酸性である.

G A Olah, G K Prakash, J Sommer

    Science (New York, N.Y.)
    |October 5, 1979
    PubMed
    まとめ
    この要約は機械生成です。

    硫酸をはるかに上回る酸性を持つ超酸性物質は,溶液中の安定した炭酸塩の研究を可能にします. これらの強力な酸は,メタンの活性化を含む新しい有機合成と炭化水素変換のロックを解除します.

    さらに関連する動画

    Atomic Absorbance Spectroscopy to Measure Intracellular Zinc Pools in Mammalian Cells
    13:04

    Atomic Absorbance Spectroscopy to Measure Intracellular Zinc Pools in Mammalian Cells

    Published on: May 16, 2019

    Production of Disulfide-stabilized Transmembrane Peptide Complexes for Structural Studies
    12:05

    Production of Disulfide-stabilized Transmembrane Peptide Complexes for Structural Studies

    Published on: March 6, 2013

    関連する実験動画

    Last Updated: Jul 12, 2026

    Unveiling Histone Proteoforms using 2D-TAU Gel Electrophoresis
    07:20

    Unveiling Histone Proteoforms using 2D-TAU Gel Electrophoresis

    Published on: October 18, 2024

    Atomic Absorbance Spectroscopy to Measure Intracellular Zinc Pools in Mammalian Cells
    13:04

    Atomic Absorbance Spectroscopy to Measure Intracellular Zinc Pools in Mammalian Cells

    Published on: May 16, 2019

    Production of Disulfide-stabilized Transmembrane Peptide Complexes for Structural Studies
    12:05

    Production of Disulfide-stabilized Transmembrane Peptide Complexes for Structural Studies

    Published on: March 6, 2013

    科学分野:

    • 化学 化学は化学です.
    • 有機化学 オーガニック・ケミストリー
    • 物理化学 物理化学

    背景:

    • スーパアシドは1927年に初めて観察され,過去10年間で広範な研究が行われました.
    • 現在の超酸性システムでは,硫黄酸の10^12倍の酸度に達します.
    • 超酸性カウンターイオンの低核好性は,それらのユニークな反応性の鍵です.

    研究 の 目的:

    • 化学合成とカチオン安定化における現代の超酸性の能力を探求する.
    • 新しい炭化水素変換のためのスーパアシドの可能性を調査する.
    • 以前はガス相のみの種を溶液で研究することを可能にします.

    主な方法:

    • 非常に低い核好性を持つ超酸性システムを利用する.
    • スーパアシドを用いて,電子欠乏カルボケーションを安定させる.
    • オーガニック合成と炭化水素変換を超酸性環境で実施する.

    主要な成果:

    • 安定した電子欠乏カルボケーションは,以前はガス相でのみ観察されていたが,現在は溶液で研究されている.
    • 従来の酸で実現できない新しい有機合成が達成される.
    • 炭化水素の変換は,電性オリゴコンデンサスのためのメタンの活性化を含むことが示されています.

    結論:

    • スーパアシドは,カルボカチオンなどの反応性中間物質の研究に前例のない機会を提供します.
    • それらは,貴重な炭化水素のためのユニークな合成経路を促進します.
    • スーパアシドは化学の新たな領域,特に炭化水素の活性化と変換の領域を開拓しています.