Hydrogen iodide (HI) is a diatomic molecule and hydrogen halide. Aqueous solutions of HI are known as hydroiodic acid or hydriodic acid, a strong acid. Hydrogen iodide and hydroiodic acid are, however, different in that the former is a gas under standard conditions, whereas the other is an aqueous solution of the gas. They are interconvertible.

pKa Data Compiled by R. Williams pKa Values INDEX Inorganic 2 Phenazine 24 Phosphates 3 Pyridine 25 Carboxylic acids 4, 8 Pyrazine 26 Aliphatic 4, 8 ... HI -10.0 31 H2TeO3 2.7, 8.0 28 HOI 11.0 28 Te(OH)6 6.2, 8.8 28 HIO3 0.8 28 H2VO4– 8.95 30 H4IO6– 6.00 34 HVO4= 14.4 30

Gas-phase acidities and pKa values in water and DMSO.a. a Uncertainties of recommended values correspond to ca 90% probability and are estimated taking into account the results of the different approaches together with their expected reliability.

Table of Acids with Ka and pKa Values* CLAS * Compiled from Appendix 5 Chem 1A, B, C Lab Manual and Zumdahl 6th Ed. The pKa values for organic acids can be found in Appendix II of Bruice 5th Ed.

pKa is a value that indicates how weak or powerful an acid is in simple terms. The pKa of a strong acid is less than zero. pKa is the negative log base ten of the Ka value, to be precise (acid dissociation constant). It determines an acid’s strength, …

The pKa measures the "strength" of a Bronsted acid. A proton, H + , is a strong Lewis acid; it attracts electron pairs very effectively, so much so that it is almost always attached to an electron donor.

Hydrogen iodide | HI | CID 24841 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and more.

2017年6月7日 · Basically the pKa table is very important and useful, and you will gain a lot of advantages by understanding how to use it. You can use the pKa table to gauge the strength of acids with the same functional group. Before I explain the pKa table further, I would like to point out something important.

Relative Strength of Acids & Bases. Use this acids and bases chart to find the relative strength of the most common acids and bases. This acid-base chart includes the K a value for reference along with the chemical's formula and the acid’s conjugate base. The acid and base chart is a reference table designed to make determining the strength of acids and bases simpler.

酸度系数，又名酸离解常数，代号Ka值，在化学及 生物化学 中，是指一个特定的平衡常数，以代表一种酸 离解 氢离子的能力。 该平衡状况是指由一种酸（HA）中，将氢离子（即一粒质子）转移至 水 （H2O）。 水的浓度（ [H2O]）是不会在系数中显示的。 离解的 化学反应 为：HA+H2O⇌A - +H3O +. 平衡常数 的方程式为：由于在不同的酸这个常数会有所不同，所以酸度系数会以 常用对数 的 加法逆元，以符号pKa，来表示：一般来说，较大的Ka值（或较小的pKa值）代表较强 …