12/09/15 - 3/4 C1H - 009 - Equation Stoich 1 (continued from yesterday) and LR

Today's Agenda

Learning Goal
    1. (REVIEW equation writing and balancing)
    2. Interpret an equation in terms of:
      1. particles 
        1. atoms
        2. cules/formula units
      2. mass
      3. moles
    3. Use EWAA and detailed unit analysis to solve equation stoichiometry problems when you are given the amount of ONE of the substances in a chemical reaction,  aA +  bB → cC + dD.
                Activities
                1. Bell Ringer
                  1. You need notes, problems from yesterday, a calculator, and Appendix D opened.
                  2. I will begin soon after the tardy bell rings.  Be ready when I am.
                2. Activities
                  1. Test - 007 Chemical Reactions (let's go over it)
                  2. Install a fully functional TI84 on your CB
                  3. Practice Problems - General feedback and then continue, finish, resubmit.
                    1. Use 2 mol Na = 1 mol H2, not 2.00 mol Na = 1.00 mol H2. Why?
                    2. Use 18 mol Al  x 3 mol H2SO4/2 mol Al = 27 mol Al instead of (18 mol Al  =3 mol H2SO4/2 mol Al = 27 mol Al)
                    3. Analysis:  18 moles of aluminum can produce 27 moles of sulfuric acid.
                    4. Sig digs are determined by the data (given), not the masses you can look up, or the coefficients in the equation.
                    5. Formulas MUST be correct.  Don't forget - BrINClHOF
                  4. Notes - 009 Limiting Reagent (time permitting)
                Prepare for the Next Class
                1. Check your calendar and GC 
                2. REVIEW
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