Download presentation
Presentation is loading. Please wait.
Published byRolando Stile Modified over 10 years ago
1
Section 9.3 Limiting Reactants and Percent Yield Double Cheeseburgers and Stoichiometry 1 Double Cheeseburger needs 1 bun, 2 patties, 2 slices of cheese, 4 strips of bacon For 5 Double Cheeseburgers how many units of each ingredient do I need? Fill in the final column below with how many complete burgers I can make: BunsPattiesCheese Slices Bacon Strips How Many Burgers? 2448 44816 303248
2
Section 9.3 Limiting Reactants and Percent Yield 1.To understand the concept of limiting reactants 2.To learn to recognize the limiting reactant in a reaction 3.To learn to use the limiting reactant to do stoichiometric calculations 4.To learn to calculate percent yield Objectives
3
Section 9.3 Limiting Reactants and Percent Yield A. The Concept of Limiting Reactants Stoichiometric mixture –N 2 (g) + 3H 2 (g) 2NH 3 (g)
4
Section 9.3 Limiting Reactants and Percent Yield Limiting reactant mixture A. The Concept of Limiting Reactants –N 2 (g) + 3H 2 (g) 2NH 3 (g)
5
Section 9.3 Limiting Reactants and Percent Yield For a Limiting reactant mixture the number of moles are not balanced to match the reaction equation –N 2 (g) + 3H 2 (g) 2NH 3 (g) A. The Concept of Limiting Reactants –Limiting reactant is the reactant that runs out first –When the limiting reactant is exhausted, then the reaction stops
6
Section 9.3 Limiting Reactants and Percent Yield B. Calculations Involving a Limiting Reactant
7
Section 9.3 Limiting Reactants and Percent Yield Method 1: LAURA CHANG METHOD OF LR DETERMINATION Grams of reactant A- convert to moles and divide by the coefficient g/(g/mol)= x/coeff Grams of reactant B- convert to moles and divide by the coefficient (g/(g/mol)= x/coeff) The smaller value is the limiting reactant!
8
Section 9.3 Limiting Reactants and Percent Yield Method 2: Calculations Involving a Limiting Reactant
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.