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Lecture 12.3- Limiting Reagents and Percent Yield
- 1. Bellwork- Make 1cup of water H 2 + O 2 H 2 O How many liters of H 2 gas and O 2 gas at STP are required to make a cup of water? One cup (240mL) has a mass of 240g for pure water. 240g H 2 O x 1mol = 13.3mol H 2 O 18g 13.3 mol H 2 O x 13.3 mol H 2 O x 2 2 2 moles H 2 2 moles H 2 O 1 mole O 2 . 2 moles H 2 O = 13.3mol H 2 = 6.67mol O 2 x 22.4L/mol = 299L H 2 x 22.4L/mol = 149L O 2
- 8. 12.7
- 9. 12.7
- 10. 12.7
- 11. 12.7
- 12. for Sample Problem 12.7
- 13. 12.8Q
- 14. 12.8
- 15. 12.8
- 16. 12.8
- 17. for Sample Problem 12.8
- 21. The actual yield is often lower than the theoretical yield because not all reactions go to completion. The actual yield should never be higher than your theoretical yield.
- 22. 12.9
- 23. 12.9
- 24. 12.9
- 25. 12.9
- 26. 12.10
- 27. 12.10
- 28. 12.10
- 29. 12.10
- 30. for Sample Problem 12.10
Notas del editor
- A batting average is actually a percent yield.