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Chapter 8 The Mole Part 2 What is Avogadros Favorite Music.

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Presentation on theme: "Chapter 8 The Mole Part 2 What is Avogadros Favorite Music."— Presentation transcript:

1

2 Chapter 8 The Mole Part 2

3 What is Avogadros Favorite Music

4 a

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6 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

7 1 mole Al = ?

8 1 mole Al = 27.0 g Al

9 What are the conversion factors?

10 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?

11 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?

12 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

13 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

14 A can of diet cola contains about 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?

15 200.0 mg

16 A can of diet cola contains about 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? mg mg 0.001g

17 A can of diet cola contains about 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) = g/mol mg mg 0.001g g mol

18 A can of diet cola contains about 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) = g/mol mg mg 0.001g g mol x mol C 14 H 18 N 2 O 5

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

20 6.803 x mol C 14 H 18 N 2 O 5

21 How many aspartame molecules would you consume for each can of diet cola that you drank? x mol C 14 H 18 N 2 O 5 mol

22 How many aspartame molecules would you consume for each can of diet cola that you drank? x mol C 14 H 18 N 2 O 5 mol molecules

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

24 1mol of C 14 H 18 N 2 O 5 What does it weigh? –294.0 g How many C 14 H 18 N 2 O 5 s? –6.02 x C 14 H 18 N 2 O 5 molecules How many carbon atoms? –14(6.02 x ) C atoms How many hydrogen atoms? –18(6.02 x ) H atoms How many nitrogen atoms? –2(6.02 x ) N atoms How many oxygen atoms? –5(6.02 x ) O atoms How many total atoms? –39(6.02 x ) atoms

25 How many carbon atoms would be contained in 145g of aspartame? Remember that aspartame is C 14 H 18 N 2 O 5 and it has a gram formula mass of g/mol.

26 How many carbon atoms would be contained in 145g of aspartame (C 14 H 18 N 2 O 5 )? 4.16 x C atoms

27 How many grams of aspartame contain 8.74 x oxygen atoms? Aspartame is C 14 H 18 N 2 O 5 and it has a molar mass of g/mol.

28 How many grams of aspartame (C 14 H 18 N 2 O 5 ) contain 8.74 x oxygen atoms? 8.54 g of aspartame

29 Lab Activity Mole Worksheet 2 –Mole Worksheet 2 is a lab exercise. –Notice that there is a front and a back to the worksheet. –The answers on the back have been given however you need to show your work as factor label problems to get credit. –You and your lab partner need to turn in one copy of the worksheet by the end of the period.


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