percentage yield

• What does the term yield refer to in a chemical reaction?

  Amount of product obtained from a reaction
• Why is it impossible to achieve 100% yield in a chemical process?

  Due to various practical limitations
• What are the reasons for not achieving 100% yield in chemical reactions?

  • Some reactants left in equipment
  • Reversible reactions prevent high yield
  • Product loss during separation and purification
  • Side reactions with impurities or gases
  • Loss during transfer between containers
• What is the actual yield in a chemical reaction?

  Recorded amount of product obtained
• How is the theoretical yield defined?

  Amount of product under perfect conditions
• What does the percentage yield compare?

  Actual yield to theoretical yield
• Why do chemical producing companies aim for high percentage yields?

  • To increase profits
  • To reduce costs
  • To minimize waste