2. Chapter 8 The Mole Part 2

3. What is Avogadro’s Favorite Music

4. a

5. Why 6.02 x 10 23 Take the gram formula mass of any substance. Convert grams into amu. Convert amu to particles.

6. Why 6.02 x 10 23 Take the gram formula mass of any substance (example C = 12.0g/mol). 12.0 g C mol

7. Why 6.02 x 10 23 Take the gram formula mass of any substance (example C = 12.0g/mol). Convert grams into amu (1.66 x 10 -24 g = 1amu) 12.0 g C mol g

8. Why 6.02 x 10 23 Take the gram formula mass of any substance (example C = 12.0g/mol). Convert grams into amu (1.66 x 10 -24 g = 1amu) 12.0 g C amu atom mol g

9. Why 6.02 x 10 23 Take the gram formula mass of any substance (example C = 12.0g/mol). Convert grams into amu (1.66 x 10 -24 g = 1amu) 12.0 g C1 amu mol 1.66 x 10 -24 g

10. Why 6.02 x 10 23 Take the gram formula mass of any substance (example C = 12.0g/mol). Convert grams into amu (1.66 x 10 -24 g = 1amu) Convert amu to particles. 12.0 g C1 amu mol 1.66 x 10 -24 g amu

11. Why 6.02 x 10 23 Take the gram formula mass of any substance (example C = 12.0g/mol). Convert grams into amu (1.66 x 10 -24 g = 1amu) Convert amu to particles. 12.0 g C1 amu C atom mol 1.66 x 10 -24 g amu

12. Why 6.02 x 10 23 Take the gram formula mass of any substance (example C = 12.0g/mol). Convert grams into amu (1.66 x 10 -24 g = 1amu) Convert amu to particles. 12.0 g C1 amu C atom mol 1.66 x 10 -24 g12.0 amu = 6.02 x 10 23 C atoms/mol

13. Why 6.02 x 10 23 Take the gram formula mass of any substance (example H 2 O = 18.0g/mol). Convert grams into amu (1.66 x 10 -24 g = 1amu) Convert amu to particles. 18.0 g H 2 O1 amu H 2 O molecules mol 1.66 x 10 -24 g 18.0 amu = 6.02 x 10 23 H 2 O molecules/mol

14. Why 6.02 x 10 23 Take the gram formula mass of any substance (example C = 12.0g/mol and H 2 O = 18.0g/mol). Use the conversion factor 1.66 x 10 -24 g/amu. Determine the number of particles in 1 mole. 12.0 g C1 amu C atom mol 1.66 x 10 -24 g12.0 amu = 6.02 x 10 23 C atoms/mol 18.0 g H 2 O1 amu H 2 O molecules mol 1.66 x 10 -24 g 18.0 amu = 6.02 x 10 23 H 2 O molecules/mol

15. Why 6.02 x 10 23 It turns out that whenever we take an amount of a substance equal to it’s formula mass in grams we will have 6.02 x 10 23 particles of that substance. This number was named Avogadro’s number and is called a mole. 12.0 g C1 amu C atom mol 1.66 x 10 -24 g12.0 amu = 6.02 x 10 23 C atoms/mol 18.0 g H 2 O1 amu H 2 O molecules mol 1.66 x 10 -24 g 18.0 amu = 6.02 x 10 23 H 2 O molecules/mol

17. Converting Moles and Grams Aluminum is often used for the structure of light-weight bicycle frames. How many grams of Al are in 3.62 moles of Al? a

18. 1 mole Al = ?

19. 1 mole Al = 27.0 g Al

20. What are the conversion factors?

21. 1 mole Al = 27.0 g Al 27.0g Al or 1 mol Al 1 mol Al 27.0 g Al What are the conversion factors?

22. 1 mole Al = 27.0 g Al 27.0g Al or 1 mol Al 1 mol Al 27.0 g Al What are the conversion factors? Aluminum is often used for the structure of light- weight bicycle frames. How many grams of Al are in 3.62 moles of Al?

23. 1 mole Al = 27.0 g Al Conversion factors for Al 27.0g Al or 1 mol Al 1 mol Al 27.0 g Al 3.62 moles Al

24. 1 mole Al = 27.0 g Al Conversion factors for Al 27.0g Al or 1 mol Al 1 mol Al 27.0 g Al 3.62 moles Al 27.0 g Al 1 mole Al = 97.7g Al

25. A can of diet cola contains about 200.0 mg of the artificial sweetener aspartame (Nutra-Sweet) formula C 14 H 18 N 2 O 5. It is used to sweeten diet foods, coffee and soft drinks. How many moles of aspartame are present in a can of diet cola?

26. 200.0 mg

27. A can of diet cola contains about 200.0 mg of the artificial sweetener aspartame (Nutra-Sweet) formula C 14 H 18 N 2 O 5. It is used to sweeten diet foods, coffee and soft drinks. How many moles of aspartame are present in a can of diet cola? 200.0 mg mg 0.001g

28. A can of diet cola contains about 200.0 mg of the artificial sweetener aspartame (Nutra-Sweet) formula C 14 H 18 N 2 O 5. It is used to sweeten diet foods, coffee and soft drinks. How many moles of aspartame are present in a can of diet cola? 14(12.0) + 18(1.0) + 2(14.0) + 5(16.0) = 294.0 g/mol 200.0 mg mg 0.001g g mol

29. A can of diet cola contains about 200.0 mg of the artificial sweetener aspartame (Nutra-Sweet) formula C 14 H 18 N 2 O 5. It is used to sweeten diet foods, coffee and soft drinks. How many moles of aspartame are present in a can of diet cola? 14(12.0) + 18(1.0) + 2(14.0) + 5(16.0) = 294.0 g/mol 200.0 mg mg 0.001g 294.0 g mol 6.803 x 10 -4 mol C 14 H 18 N 2 O 5

30. How many aspartame molecules would you consume for each can of diet cola that you drank?

31. 6.803 x 10 -4 mol C 14 H 18 N 2 O 5

32. How many aspartame molecules would you consume for each can of diet cola that you drank? 6.803 x 10 -4 mol C 14 H 18 N 2 O 5 mol

33. How many aspartame molecules would you consume for each can of diet cola that you drank? 6.803 x 10 -4 mol C 14 H 18 N 2 O 5 mol molecules

34. How many aspartame molecules would you consume for each can of diet cola that you drank? 6.803 x 10 -4 mol C 14 H 18 N 2 O 5 mol 6.02 x 10 23 molecules = 4.10 x 10 20 C 14 H 18 N 2 O 5 molecules 410,000,000,000,000,000,000 410 million trillion aspartame molecules

35. 1mol of C 14 H 18 N 2 O 5 How many C 14 H 18 N 2 O 5 ’s? –6.02 x 10 23 C 14 H 18 N 2 O 5 molecules How many carbon atoms? –14(6.02 x 10 23 ) C atoms How many hydrogen atoms? –18(6.02 x 10 23 ) H atoms How many nitrogen atoms? –2(6.02 x 10 23 ) N atoms How many oxygen atoms? –5(6.02 x 10 23 ) O atoms How many total atoms? –39(6.02 x 10 23 ) atoms What does it weigh? –294.0 g

36. How many carbon atoms would be contained in 145g of aspartame? 4.16 x 10 24 C atoms

37. How many grams of aspartame contain 8.74 x 10 22 oxygen atoms? 8.54 g of aspartame

38. Homework Mole Worksheet 2 –there is a front and a back to this worksheet.