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# Limiting Reactant

Limiting Reactant. A.K.A. Stoichiometry. How do we determine which reactant limits the product?. One reactant remains while the other is consumed in a reaction Mole ratio will help determine the limiting reaction Need to create a conversion pathway.

## Limiting Reactant

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1. Limiting Reactant A.K.A. Stoichiometry

2. How do we determine which reactant limits the product? One reactant remains while the other is consumed in a reaction Mole ratio will help determine the limiting reaction Need to create a conversion pathway

3. How Do Hot Fudge Sundaes and Limiting Reactants Relate?

4. How Many Sundaes Can You Make?

5. Two! The chocolate syrup limits the recipe!

6. Which reactant is the limiting reactant? Step 1 Moles of reactant Moles of product • Which reactant remains when 6.70 mole Na reacts with 3.2o moles of Cl2 • 2 Na + Cl22 NaCl

7. 2 Na + Cl22 NaCl Step 1 Step 1 Cl2 is the Limiting Reactant!

8. It’s Your Turn… Limiting Reactant Worksheet

9. Limiting Reactant and Mass-Mass Conversions • Which reactant is the limiting reactant when 3.5 g Cu reacts with 6.0 g AgNO3? • Cu + AgNO3 Cu(NO3)2 + Ag; balanced? • Cu + 2 AgNO3 Cu(NO3)2 + 2 Ag

10. Create a Conversion PathwayCu + 2 AgNO3 Cu(NO3)2 + 2 Ag Step 1 Step 2 Step 3 Moles of Reactant Mass of Product Mass of Reactant Moles of Product We have 3.5 g Cu and 6.0 g AgNO3

11. Cu + 2 AgNO3 Cu(NO3)2 + 2 Ag Silver nitrate is the limiting reactant!

12. Homework Read pp. 257-258 Answer problems pg. 263: 45

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