THE HAMBURGER ANALOGY Bacon Double Cheeseburger 1 hamburger

THE HAMBURGER ANALOGY Bacon Double Cheeseburger • 1 hamburger bun • 2 hamburger patties • 2 slices of cheese • 4 strips of bacon

THE HAMBURGER ANALOGY 1. If I have five bacon double cheeseburgers: how many hamburger buns do I have? ______ how many hamburger patties do I have? ______ how many slices of cheese do I have? ______ how many strips of bacon do I have? ______

THE HAMBURGER ANALOGY 2. How many bacon double cheeseburgers can you make if you start with: 1 bun, 2 patties, 2 slices of cheese, 4 strips of bacon _____ 2 buns, 4 patties, 4 slices of cheese, 8 strips of bacon _____ 1 dozen buns, 2 dozen patties, 2 dozen slices of cheese, 4 dozen strips of bacon ____ 1 mole bun, 2 mole patties, 2 mole slices of cheese, 4 mole strips of bacon _____ 10 buns, 20 patties, 2 slices of cheese, 40 strips of

THE HAMBURGER ANALOGY 3. If you had fixings for 100 bacon double cheeseburgers, but when you were cooking you ruined 10 of them. What percentage of the bacon double cheeseburgers do you actually make? _____

NOW, THE CHEMISTRY PROBLEM… here are two example chemical recipes: • Mg + S Mg. S • 1 mole of H 2 SO 4 & 2 moles of Na. OH produce 1 mole of Na 2 SO 4 & 2 moles of H 2 O

THE CHEMISTRY PROBLEM 1. If I have 7 moles of Mg. S: Mg + S Mg. S 7 moles Mg how many moles of magnesium do I have? how many moles of sulfur do i have? 7 moles S 2. If I want to make 5 moles of Na 2 SO 4: 1 H 2 SO 4 + 2 Na. OH 1 Na 2 SO 4 + 2 H 2 O 5 moles how many moles of H 2 SO 4 do i need? H 2 SO 4 10 moles how many moles of Na. OH do i need? Na. OH

THE CHEMISTRY PROBLEM 1 How much Na 2 SO 4 can I make if I have: 1 mole of H 2 SO 4 and 2 mole of Na. OH _____ 10 mole of H 2 SO 4 and 20 mole of Na. OH _____ 0. 1 mole H 2 SO 4 and 0. 2 mole of Na. OH _____ 1 mole of H 2 SO 4 and 20 mole of Na. OH _____ 0. 42 mole of H 2 SO 4 and 0. 65 mole of Na. OH

STOICHIOMETRY Read: • 275 – 277 p. 277 #1 -3 • 278 – 287 p. 287 #1 -5