CHEM-C 101 1st EditionLecture 16Nomenclature: naming chemical compounds-unique name for chemical compound based on chemical formula-must be able to ID element in chemical formula to determine naming system-nonmetal-nonmetal = covalent compound-metal-nonmetal= ionic compoundNaming Binary Ionic Compounds: Name consists of names of 2 ions, metal 1st, add suffix to nonmetalWhen metal has same ioniccharge in all compounds-name of metal ion is simplyname of metal-only 1 chemical formulapossible in each case-LiCl …. Lithium ChlorideWhen metal has different ioniccharges in different compoundsSystematic Names: the chargeof metal ion is indicated by aroman numeral in parenthesisafter metal name FeCl2 ….Iron (II) ChlorideOlder System Names: thecharge of the metal ion isindicated by suffix. When metalcommonly occurs as either of 2ions –ous is used for ion for ionof lower charge and –ic for ionof higher chargeFeCl2 …. Ferrous ChlorideFeCl3 …. Ferric ChlorideNaming Binary Covalent Compounds-name of compound is constructed from names of 2 elements-less electronegative element is named first-more electronegative element is named second and take suffix –ide-for each element, prefix indicates number of atoms of that element in the formulaNaming Acids:-Acid is anything that dissociates in water to yield an H- ion-naming rules listed are used when acid is dissolved in water-when not dissolved in water, acids of this type are either binary compounds or polyatomic ionic compounds and are named by appropriate rulesWhen formula doesn’t contain oxygen: Add prefix hyrdro- and suffix –ic acid to name of nonhydrogen element or polyatomic ion: HF …. Hydrofluoric AcidWhen formula contains oxygen (all polyatomic compounds):And name of anion ends in-ite: replace suffix –ite with –ous acid …… H2SO3 = sulfurous acidAnd name of anion ends in-ate: replace suffix –ate with –ic acid….. H2SO4 = sulfuric