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An oxyanion, or oxoanion, is an ion with the generic formula A x O z− y (where A represents a chemical element and O represents an oxygen atom). Oxyanions are formed by a large majority of the chemical elements. [1] The formulae of simple oxyanions are determined by the octet rule. The corresponding oxyacid of an oxyanion is the compound H z ...
The model is defined in terms of a list of those complex species which are present in solutions in significant amounts. In the present context the complex species have the general formula [M p O q (OH) r] n±. where p, q and r define the stoichiometry of the species and n± gives the electrical charge of the ion. The experimental data are ...
Orthonitrate is a tetrahedral anion of nitrogen with the formula NO 3− 4. It was first identified in 1977 [1] and is currently known in only two compounds, sodium orthonitrate (Na 3 NO 4) and potassium orthonitrate (K 3 NO 4). The corresponding oxoacid, orthonitric acid (H 3 NO 4), is hypothetical and has never been observed.
In chemistry, an arsenite is a chemical compound containing an arsenic oxyanion where arsenic has oxidation state +3. Note that in fields that commonly deal with groundwater chemistry, arsenite is used generically to identify soluble As III anions. IUPAC have recommended that arsenite compounds are to be named as arsenate(III), for example ...
The number and identity of the oxyanions that exist between pH 13 and 2 depend on pH as well as concentration. For example, protonation of vanadate initiates a series of condensations to produce polyoxovanadate ions: [2] pH 9–12: HVO 2− 4, V 2 O 4− 7; pH 4–9: H 2 VO − 4, V 4 O 4− 12, HV 10 O 5− 28; pH 2–4: H 3 VO 4, H 2 V 10 O 4 ...
In chemistry, an oxocarbon anion is a negative ion consisting solely of carbon and oxygen atoms, and therefore having the general formula C x O n− y for some integers x, y, and n. The most common oxocarbon anions are carbonate, CO 2− 3, and oxalate, C 2 O 2− 4. There are however a large number of stable anions in this class, including ...
Print/export Download as PDF; Printable version; In other projects ... Help. Sulfur oxyanions are ions of sulfur oxoacids. The conjugate bases are in ...
The dithionite is the oxyanion with the formula [S 2 O 4] 2−. [1] It is commonly encountered as the salt sodium dithionite. For historical reasons, it is sometimes called hydrosulfite, but it contains no hydrogen and is not a sulfite. [2] The dianion has a steric number of 4 and trigonal pyramidal geometry.