percentage yield

• the percentage yield for any reaction will always be under 100%
• the theoretical yield is the maximum amount of product that could possibly be created from a reaction
• what features of a reaction will make it more likely to be incomplete?

  it is slow and it is reversible
• what factors reduce percentage yield?

  chemicals stick to apparatus, side reactions, incomplete reactions and separation difficulties
• Why are yields always less than 100%?

  -not all reactants react to make a product

  -side reactions

  -some of the product is lost