Presentation on theme: "Stoichiometry. ¾ cup sugar 3 cups flour ½ cup butter 3 Tbls baking soda Yield: 38 cookies How many dozen cookies can you make if you only."— Presentation transcript:
¾ cup sugar 3 cups flour ½ cup butter 3 Tbls baking soda Yield: 38 cookies How many dozen cookies can you make if you only have 2 Tbls of baking soda?
How many grams of NH 3 can be produced from 27 grams of H 2 ?
gA → mol A mol A → mol B mol B → g B Variations: L → mol molecule → mol
Compares the actual results of an experiment to the theoretical (calculated) results % yield = Why may yield not be 100% of the expected value?
Limits or determines the amount of product that can be formed because the reactant is fully used during the reaction Calculate the theoretical product using each given reactant value and the lower yield will indicate the limiting reactant
The reactant that is not completely used up in the chemical reaction Calculate the amount of excess reactant needed using moles of the limiting reactant.