1. 3/15/2016 I ObjectiveDo Now Define what a mole ratio is and apply the concept to balanced chemical equations. Take out the “Butters” worksheet and make a pile in the middle of your table. Then… Consider the following balanced chemical equation: 2 FeCl 3 + 3 Zn → 2 Fe + 3 ZnCl 2 The mole ratio of zinc to iron is 3:2. How many other mole ratios can you identify in the equaiton?

2. Reminders Grams/Moles Calculations go in the late folder if you did not show them to me yesterday. If you are missing any of the last three quizzes, you may make them up today after school in room 309.

3. Mole Ratio The ratio between the amounts in moles of any two compounds involved in a chemical reaction Mole ratios are used as conversion factors between two reactants, two products, or a reactant and a product in a balanced chemical equation.

4. Mole Ratio The ratio between the amounts in moles of any two compounds involved in a chemical reaction Mole ratios are used as conversion factors between two reactants, two products, or a reactant and a product in a balanced chemical equation. What is the “mole” ratio between Cracker Squares (Cq) and Marshmallows (Mm)?

5. Mole Ratio The ratio between the amounts in moles of any two compounds involved in a chemical reaction What is the “mole” ratio between Cracker Squares (Cq) and Marshmallows (Mm)? 2:12 mol Cq 1 mol Mm

6. Mole Ratio The ratio between the amounts in moles of any two compounds involved in a chemical reaction What is the “mole” ratio between Cracker Squares (Cq) and Marshmallows (Mm)? 2:12 mol Cq1 mol Mm 1 mol Mm2 mol Cq

7. Mole Ratio The ratio between the amounts in moles of any two compounds involved in a chemical reaction What is the “mole” ratio between Marshmallows (Mm) and Chocolate Squares (Ch)?

8. Mole Ratio The ratio between the amounts in moles of any two compounds involved in a chemical reaction What is the “mole” ratio between Marshmallows (Mm) and Chocolate Squares (Ch)? 1:31 mol Mm 3 mol Ch

9. Mole Ratio The ratio between the amounts in moles of any two compounds involved in a chemical reaction What is the “mole” ratio between Marshmallows (Mm) and Chocolate Squares (Ch)? 1:31 mol Mm3 mol Ch 3 mol Ch1 mol Mm

10. Mole Ratio The ratio between the amounts in moles of any two compounds involved in a chemical reaction What is the “mole” ratio between Cracker Squares (Cq) and S’mores?

11. Mole Ratio The ratio between the amounts in moles of any two compounds involved in a chemical reaction What is the “mole” ratio between Cracker Squares (Cq) and S’mores? 2:12 mol Cq 1 S’more

12. Mole Ratio The ratio between the amounts in moles of any two compounds involved in a chemical reaction What is the “mole” ratio between Cracker Squares (Cq) and S’mores? 2:12 mol Cq1 molS’more 1 mol S’more2 mol Cq