Stoichiometry Module: Limiting Reactants |
|
|
If 200 g salicylic acid is added to 100 g acetic anhydride, which reactant will limit the reaction? Step 2: Choose one of the reactants and calculate how much of the other reactant is needed to react completely with the amount initially present. The choice of reactants is arbitrary; you will arrive at the same conclusion choosing either reactant. Let's first choose salicylic acid.
|
||||||||||||||||||
|
Good! Each mole of salicylic acid will react with half a mole of acetic anhydride:
|
|
Remember that each mole of salicylic acid will react with half a mole of acetic anhydride. |