It shows you how to perform stoichiometric calculations an. List other known quantities and plan the problem. The limiting reagent and excess reagent In a chemical reaction you have both limiting reagents and excess reagents.
Identify the given information and what the problem is asking you to find.
Convert all given information into moles most likely through the use of molar mass as a conversion factor. Approach 1 The Reactant Mole Ratio Method. Find the limiting reactant by looking at the number of moles of each reactant. Calculate the percent yield.