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Carbonic acid is a chemical compound with the chemical formula H 2 C O 3.The molecule rapidly converts to water and carbon dioxide in the presence of water. However, in the absence of water, it is quite stable at room temperature.
Chemical formula Synonyms CAS number; CAgN: silver cyanide: 506-64-9 CAlH 2 N: aluminium monocyanide: 19401-01-5 CB: boron carbide: 12011-54-0 CBSi: carbon monoboride monosilicide: 12628-09-0 CB 2: diboron carbide: 12537-86-9 CB 4: boron carbide: 12069-32-8 CBe 2: beryllium carbide: 506-66-1 CBr: bromomethylidyne: 3889-77-8 CBrF 2 ...
instead of attached to Cl − anions and the conjugate bases will be weaker than water molecules. On the other hand, if a chemical is a weak acid its conjugate base will not necessarily be strong. Consider that ethanoate, the conjugate base of ethanoic acid, has a base splitting constant (Kb) of about 5.6 × 10 −10 , making it a weak base.
A functional group is a molecular module, and the reactivity of that functional group is assumed, within limits, to be the same in a variety of molecules. Functional groups can have a decisive influence on the chemical and physical properties of organic compounds. Molecules are classified based on their functional groups.
Indeed, many molecules behave as acids in non-aqueous solutions but not in aqueous solutions. An extreme case occurs with carbon acids, where a proton is extracted from a C−H bond. [12] Some non-aqueous solvents can behave as acids. An acidic solvent will make dissolved substances more basic.
For many substances, the formation reaction may be considered as the sum of a number of simpler reactions, either real or fictitious. The enthalpy of reaction can then be analyzed by applying Hess' law, which states that the sum of the enthalpy changes for a number of individual reaction steps equals the enthalpy change of the overall reaction.
Molecules or ions that contain both acidic and basic functional groups. Amino acids H 2 N−RCH−CO 2 H have both a basic group −NH 2 and an acidic group −COOH. Often such species exists as several structures in chemical equilibrium: H 2 N−CRH−CO 2 H + H 2 O ⇌ H 2 N−CRH−COO − + H 3 O + ⇌ H 3 N + −CRH−COOH + HO − ⇌ H 3 ...
A weak electrolyte is a substance whose solute exists in solution mostly in the form of molecules (which are said to be "undissociated"), with only a small fraction in the form of ions. Simply because a substance does not readily dissolve does not make it a weak electrolyte. Acetic acid (CH 3 COOH) and ammonium (NH + 4) are good examples ...