Chem 1070 1st Edition Lecture 9Outline of Last Lecture I. Law of CompositionII.Molecules and Compounds III.FormulasOutline of Current Lecture II. Ionic Compounds with Polyatomic IonsIII. Covalent CompoundsIV. Binary Acids and Oxo-AcidsV. Formula MassCurrent LectureIonic Compounds With Polyatomic IonsA Polyatomic ion is a compound that has parentheses around one part of the compound for example: Ba(OH)2 has a polyatomic ion being (OH)2. When naming this compound you get barium hydroxide. Going the other way you can have vanadium (III) sulfate. The polyatomic ion being sulfate which is (SO4). When naming the entire thing you get V2(SO4)3.Covalent CompoundsHow do you distinguish between: NO, N2O, NO2, N2O4 and N2O5? You must use the prefixes mono-1, di-2, tri-3, tetra-4, penta-5, hexa-6, hepta-7, octa-8. After using the prefixes you add –ide at the end, so the first example would be nitrogen monoxide. *You never start a compound name with mono.Binary and Oxo-AcidsBinary acids only have 2 elements, one of those is always hydrogen which is then paired with another non-metal.An Oxo-acid is an acid containing oxygen and hydrogen and at least one other element.Formula MassThese notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.The equation for formula mass is as follows: (# of atoms in 1st element x Atomic mass of 1st element)+(# of atoms in the 2ndelement x Atomic mass of 2nd
View Full Document
Unlocking...