It is slightly soluble in water and acts as a weak acid (p Ka = 6.9 in 0.01–0.1 mol/litre solutions at 18 °C), giving the hydrosulfide ion HS−. Hydrogen sulfide and its solutions are colorless. When exposed to air, it slowly oxidizes to form elemental sulfur, which is not soluble in water. The sulfide anion S2− is not formed in aqueous solution.

Hydrogen Sulfide | H2S | CID 402 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and more.

This is “Appendix C: Dissociation Constants and pKa Values for Acids at 25°C”, appendix 3 from the book Principles of General Chemistry (v. 1.0). For details on it (including licensing), click here.

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.

Oct 27, 2017 · This page by Professor Hans Reich (UW-Madison) provides a collection of common structural motifs in Organic Chemistry and their corresponding pKa values.

The pKa measures how tightly a proton is held by a Bronsted acid. A pKa may be a small, negative number, such as -3 or -5. It may be a larger, positive number, such as 30 or 50. The lower the pKa of a Bronsted acid, the more easily it gives up its proton.

Chemical, physical and thermal properties of hydrogen sulfide, H 2 S, also called hydrosulfuric acid, sewer gas and stink damp. Phase diagram included.

Jun 16, 2024 · To find the Kb value for a conjugate weak base, recall that. Ka ×Kb = Kw K a × K b = K w. for a conjugate weak acid, HA, and its conjugate weak base, A –.

Hydrogen sulfide. Formula: H 2 S; Molecular weight: 34.081; IUPAC Standard InChI: InChI=1S/H2S/h1H2 Copy. IUPAC Standard InChIKey: RWSOTUBLDIXVET-UHFFFAOYSA-N Copy; CAS Registry Number: 7783-06-4; Chemical structure: This structure is also available as a 2d Mol file or as a computed 3d SD file

Hydrogen Sulfide is a chemical compound with a chemical formula of H₂S.