Boyceville Chemistry Mr. Hamm Known Country Unknown Country Yellow Brick Road Molarity Volume of Gas at STP Liters Lane Volume of Gas at STP Highway 22.4 Molarity Liters Lane Highway 22.4 Coefficients Bridge Molecules Avogadro’s Route 6.02 x 1023 Moles Formula Mass Road Subscript Street Grams Moles Formula Mass Road Avogadro’s Route 6.02 x 1023 Molecules Subscript Street Grams Atoms Atoms Density Avenue Density Avenue Volume Volume (pure subst.) (pure subst.) Example: Mg (s) + 2HCl (aq) —> H2 (g) + MgCl2 (s) How many molecules of hydrogen are produced from 10.00 grams of Mg? How many atoms of hydrogen? 1 mol Mg 1 mol H2 6.02 x 1023 molecules H2 2 atoms H 10.00 g Mg x ———— x ———— x ————–—————— x ————–— 24 g Mg 1 mol Mg 1 mol H2 1 molecule H2 Boyceville Chemistry Does the acid contain a polyatomic ion (more than two elements) Does the formula begin with an H? No Mr. Hamm Naming Compounds Flow Chart It is an Acid Yes No Yes Does the polyatomic ion end in ite or ate? Does it begin with a metal that has more than one oxidation number (Fe, Ni, Cu, …) No ate Yes Name the first element followed by its oxidation number (Roman Numeral) Does the formula contain a polyatomic ion (more than two elements) No Yes Name the first element, then the polyatomic ion (If two elements are present, name both, then the polyatomic ion.) Example: NaHCO3 is sodium hydrogen carbonate or sodium bicarbonate) Are both metals nonmetals? No Name the first element, then the second element with an ide ending. ite Yes Name the first element using the proper prefix...di, tri, etc (never mono). Name the second element with the proper prefix (including mono) and ide ending. 1 2 3 4 5 mono di tri tetra penta 6 7 8 9 10 hexa hepta octa nona deca Name the polyatomic ion, replacing the ate with ic. Add the word acid. Name the polyatomic ion, replacing the ite with ous. Add the word acid. Write the prefix hydro, then the name of the second element with ic ending. Add the word acid.
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