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The concentration of the species LH is equal to the sum of the concentrations of the two micro-species with the same chemical formula, labelled L 1 H and L 2 H. The constant K 2 is for a reaction with these two micro-species as products, so that [LH] = [L 1 H] + [L 2 H] appears in the numerator, and it follows that this macro-constant is equal ...
An individual chemical shift δ is the mole-fraction-weighted average of the shifts δ of nuclei in contributing species. ¯ = Example: the pK a of the hydroxyl group in citric acid has been determined from 13 C chemical shift data to be 14.4.
Potassium is a chemical element; it has symbol K (from Neo-Latin kalium) and atomic number 19. It is a silvery white metal that is soft enough to easily cut with a knife. [ 9 ] Potassium metal reacts rapidly with atmospheric oxygen to form flaky white potassium peroxide in only seconds of exposure.
[4] [5] KC 8 is a superconductor with a very low critical temperature T c = 0.14 K. [6] Heating KC 8 leads to the formation of a series of decomposition products as the K atoms are eliminated: [citation needed] 3 KC 8 → KC 24 + 2 K. Via the intermediates KC 24 (blue in color), [3] KC 36, KC 48, ultimately the compound KC 60 results.
Potassium cyanide is a compound with the formula KCN. It is a colorless salt, similar in appearance to sugar, that is highly soluble in water. Most KCN is used in gold mining, organic synthesis, and electroplating. Smaller applications include jewellery for chemical gilding and buffing. [4]
The Van 't Hoff equation relates the change in the equilibrium constant, K eq, of a chemical reaction to the change in temperature, T, given the standard enthalpy change, Δ r H ⊖, for the process. The subscript r {\displaystyle r} means "reaction" and the superscript ⊖ {\displaystyle \ominus } means "standard".
The binding constant, or affinity constant/association constant, is a special case of the equilibrium constant K, [1] and is the inverse of the dissociation constant. [2] It is associated with the binding and unbinding reaction of receptor (R) and ligand (L) molecules, which is formalized as:
Potassium lactate is a compound with formula KC 3 H 5 O 3. It is the potassium salt of lactic acid and appears as a clear, hygroscopic, syrupy liquid suspension that is typically 60% solids. [1] The substance can be concentrated to contain up to 78% solids. [2] It is produced by neutralizing lactic acid, which is fermented from a sugar source.