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Also acid ionization constant or acidity constant. A quantitative measure of the strength of an acid in solution expressed as an equilibrium constant for a chemical dissociation reaction in the context of acid-base reactions. It is often given as its base-10 cologarithm, p K a. acid–base extraction A chemical reaction in which chemical species are separated from other acids and bases. acid ...
IUPAC limits the definition to representations on a "graphical display device". [2] Ever since Dalton 's atoms and Kekulé 's benzene , there has been a rich history of hand-drawn atoms and molecules, and these representations have had an important influence on modern molecular graphics.
A transparent background should be used. Images should still be readable when scaled down to 450 pixels to prevent conflicts with the Chembox. SVG images are desirable because they are infinitely scalable, while remaining compact. However, support for SVG images among common molecule editors is limited, and may not be rendered correctly on ...
Fitting the EM images to previously known crystal structures of individual parts provides identification and a more detailed view of the process. [ 13 ] [ 14 ] In both systems, the class II (e)RF3 binds to the universal GTPase site on the ribosome, while the class I RFs occupy the A site.
An MDL Molfile is a file format for holding information about the atoms, bonds, connectivity and coordinates of a molecule.. The molfile consists of some header information, the Connection Table (CT) containing atom info, then bond connections and types, followed by sections for more complex information.
Radiofrequency ablation, a medical procedure in which tissue is burned away using electrically generated heat; Regional Forest Agreement, a series of plans for conservation of Australian forests
In chemistry, absolute configuration refers to the spatial arrangement of atoms within a molecular entity (or group) that is chiral, and its resultant stereochemical description. [1] Absolute configuration is typically relevant in organic molecules where carbon is bonded to four different substituents .
Potentiometry passively measures the potential of a solution between two electrodes, affecting the solution very little in the process. One electrode is called the reference electrode and has a constant potential, while the other one is an indicator electrode whose potential changes with the sample's composition.