Percent yield compares the actual yield of a reaction with which other quantity?

1. The actual yield is the amount of product produced when the reaction is actually carried out. 2. The theoretical yield is the amount calculated for the reaction using stoichiometric methods. 3. Percent yield compares the actual yield with the theoretical yield. 4. The theoretical yield is the best the reaction could possibly do. 5. Real reactions lose product to spills, side reactions and incomplete conversion, so the actual yield is usually smaller. 6. Percent purity is a different measure and answers a different question, so it must not be confused with this one. _Source: Siyavula Physical Sciences Grade 11 (Everything Science, CC BY 4.0), Chapter 8: Quantitative aspects of chemical change_