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WU# 1 : RTQ.SW (use DA ) , units/sub 3 lines/#

2slcBread+4slcHam+3slcCheese+1slcTomato  1whSandwich 1) Given 24 slices bread, how many whole sandwiches can you make? ________________________________________________________ ________________________________________________________

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WU# 1 : RTQ.SW (use DA ) , units/sub 3 lines/#

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  1. 2slcBread+4slcHam+3slcCheese+1slcTomato1whSandwich 1)Given 24 slices bread, how many whole sandwiches can you make? ________________________________________________________ ________________________________________________________ 2)How many Ham slices are needed to make 6 whole sandwiches? ________________________________________________________ ________________________________________________________ 3)How many Cheese slices are needed for 8 slices of bread? ________________________________________________________ ________________________________________________________ 4)How many Tomato slices are needed for 16 slices ham?________________________________________________________ ________________________________________________________ 5)2 slc cheese whsandwiches?________________________________________________________ ________________________________________________________ *Fri-WUs(A-4)due WU#1: RTQ.SW (use DA), units/sub 3 lines/#

  2. Notes #1 Stoichiometry I H:(288-306); S:(366-375) HW: Stoichiometry I(1-12)

  3. Stoichiometry: study of quantitative relationship of substances in balanced chemical reactions Balanced Equations Show Proportions coefficients show ratios of rxts and products Mole Ratios are used as conversion factors to convert from moles of 1 sub to moles of another 2H2 + _O22H2O 2 moles H2 = 1 mole O2 = 2 moles H2O ex1)10 mol H2 mol H2O *don’t reduce 10 mol H2 x___________= ex2)10 mol H2O mol O2 10 mol H2Ox___________= Notes #1: Stoichiometry I

  4. Notes #1: Stoichiometry I Stoichiometry

  5. Notes #1: Stoichiometry I _N2 + 3H2  2NH3 ex 3) How many moles hydrogen are needed to prepare 312 moles ammonia? RTQ: 312 mol NH3mol H2 312 mol NH3 x ____________ =468mol H2 ex 4) try: 9.29mol H2mol NH3? 9.29mol H2 x ___________ = 6.19molNH3

  6. Notes #1: Stoichiometry I

  7. HW: Stoichiometry I (1-12) _Li3N+3H2O_NH3+3LiOH 1) 2.5mol Li3Nmol LiOH 2.5mol Li3Nx___________=7.5 molLiOH 2) 2.5mol Li3Nmol NH3 2.5mol Li3Nx______________=2.5 mol NH3 3) 5.1mol H2Omol NH3 5.1mol H2Ox______________=1.7 mol NH3 #119) ∆ 53.1  52.6

  8. Helpful Links • http://education-portal.com/academy/lesson/mole-to-mole-ratios-and-calculations-of-a-chemical-equation.html • https://www.khanacademy.org/science/mcat/physical-processes/stoichiometry/v/stoichiometry • http://www.youtube.com/watch?v=lVT0S-W_wEM

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