INTRO TO GEN CHEM
INTRO TO GEN CHEM CHEM 110
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This 14 page Class Notes was uploaded by Carmela Kilback on Wednesday September 9, 2015. The Class Notes belongs to CHEM 110 at University of Washington taught by Staff in Fall. Since its upload, it has received 6 views. For similar materials see /class/192585/chem-110-university-of-washington in Chemistry at University of Washington.
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Date Created: 09/09/15
NOMENCLATURE Naming Compounds Naming Compounds That Contain a Metal and a NonMetal Naming Binary Compounds That Contain only NonMetal Type III Naming Compounds That Contain Polyatomie Ions Naming Acids Writing Formulas from Names Homework Problems 52 911121314 53 19 21 22 54 25 29 31 35 56 39 40 57 41 42 44 46 47 50 COMMON NAMES Water salt sugar Sugar of lead Blue vitriol quicklime NEED FOR A NAMING SYSTEM Name a compound from its formula Construct a formula from the name Learn some rules for naming inorganic compounds NAMING BINARY COMPOUNDS METAL AND A NONMETAL Binary Ionic Compounds Metal ions plus nonmetal ions Metal looses an electron Cation Nonmetal gains an electron Anion To name these compounds Simply name the ions eg Na sodium Cl39 chloride NAMING BINARY COMPOUNDS METAL AND A NONMETAL Type I cations Nat Ca2 A13 Form only one type of cation Type II cations Cr 2 and Cr 3 Cu and Cu 2 Fe 2 and Fe 3 Form two or more cations with different charges NAMING BINARY COMPOUNDS METAL AND A NONMETAL RULES FOR NAMING TYPE 1 IONIC COMPOUNDS 1 Cation is always named first and anion second Sodium Chloride and not Chlorine sodide Potassium Iodide and not Iodine potassiuide 2 A simple cation gets its name from the name of the element 3 A simple anion gets its name by taking the first part of the element name the root and adding ide Chlorine ion is chloride Iodione ion is iodide NAMING BINARY COMPOUNDS METAL AND A NONMETAL Name AlCl3 1 Identify ions present Al3 Cl39 2 Identify Names of the elements Aluminum Chloride 3 Aluminum Group 3 always forms A13 Group 1 2 3 cation never changes Chlorine Group 7 always forms Cl39 The name of AlCl3 is Aluminum Chloride NAMING BINARY COMPOUNDS METAL AND A NONMETAL NAMING TYPE II IONIC COMPOUNDS Many metals can have more than one type of Cation Cannot use terms like Gold Chloride Iron Chloride Copper chloride TWO OPTIONS 1 Roman Numerals used to specify the charge on the cation Fe II to represent Fe 2 Fe III to represent Fe 3 2 The ion with the higher charge has a name ending with ic and the ion with the lower charge has a name ending in ous Ferrous to represent Fe 2 Ferric to represent Fe 3 System 1 prefered System 2 falling into disuse NAMING BINARY COMPOUNDS METAL AND A NONMETAL Name FezO3 1 Identify ions present F e n 02 2 Identify Names of the elements Iron 11 Oxide 3 Oxide is always 2 3 atoms of oxide 32 6 Since the compounds is neutral 2 atoms of Fe 11 6 n 3 The name of FezO3 is Iron HI Oxide also called Ferric Oxide NAMING BINARY COMPOUNDS ONLY NON METALS TYPE III RULES FOR NAMING TYPE III COMPOUNDS 1 The first element in the formula is named first and full element name if used Nitrogen oxide Sulfur dioxide The second element is named as though it were an anion Prefixes are used to denote the number of atoms present mono di tri tetra penta hexa hepta octa The prefix mono is never used for naming the first element Carbon monoxide not monocarbon monooxide NAMING POLYATOMIC COMPOUNDS They are not binary compounds They contain more than two atoms CATIONS Monoatomic Nat Ca 2 Polyatomic NHf ANIONS Monoatomic Cl39 0239 Polyatomic 803239PO4339 You must memorize the names of common polyatomic ions POLYATOMIC COMPOUNDS ANIONS Monoatomio Cl39 0239 Polyatomio 803239PO4339 OXYANIONS Contain a given element and different numbers of oxygen atoms When there are more than two related members of such oxyanions we use 43 for the one with smaller number of oxygen atoms for the one with higher number of oxygen atoms Sul te 803239 Sulfate 804239 Nitrite N023 Nitr NO339 POLYATOMIC COMPOUNDS OXYANIONS 43 for the one with smaller number of oxygen atoms for the one with higher number of oxygen atoms When there are more than two oxyanions in a series additional pre xes are used Hypo for the one with the fewest oxygens E for the one with the most oxygens ClO39 Mchlorite C10239 Chlorite ClO339 Chlorate ClO439 mchlor NAMING ACIDS Binary metals with nonrnetals are ionic eg NaCl in water gives Na and Cl39 Acids produce H when dissolved in water One simple way to think of acids is as one or more protons attached to anions eg HCl in water gives H and Cl39
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