Nomenclature5Ans.pdf

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Department
Chemistry
Course
CHEM 111
Professor
Beatrice Botch
Semester
Fall

Description
Chem 111/121 9/29/02 Nomenclature Worksheet 5 A. The ‘ite’ Oxo anions The ‘ite’ anions are formed from the ‘ate’ anions by removing one oxygen. The charge does not change. Not all the ‘ate’ anions have ‘ite’ counterparts. - NO 2 nitrite ClO 2- chlorite SO 32- sulfite 3- PO 3 phosphite B. The ‘per’ and ‘hypo’ Oxo anions Some elements are able to combine with oxygen and form a range of oxo anions. When this happens the prefix of the anion changes. If there is one MORE oxygen than the ‘ate’ anion, use the prefix per. ClO 4- perchlorate If th-re is one LESS oxygen than the ‘ite’ anion, use the prefix hypo. ClO hypochlorite C. More polyatomic ions NH 4+ ammonium cation (note: the only nonmetal cation we will use) CN - cyanide - OH hydroxide HCO 3- hydrogen ca
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