The Mole

1
Chapter 8

• The Mole
• Part 2

2
What is Avogadros Favorite Music
3
What is Avogadros Favorite Music
a
4
6.02 x 1023 ___________
5
What else doe one mol C12 H22O11 equal? 12 mol
C 22 mol H 11 mol O
6
How many moles of copper (II) sulfate are in this
0.14g sample?
7
How many moles of copper (II) sulfate are in this
0.14g sample?

• 0.00088 mol CuSO4

8
How many oxygen atoms are present in the 0.14g
sample of copper (II) sulfate are in this?
9
How many oxygen atoms are present in the 0.14g
sample of copper (II) sulfate are in this?

• 2.2 x 1021 O atoms

10

• A can of diet cola contains about 200.0 mg of
  the artificial sweetener aspartame (Nutra-Sweet)
  formula C14H18N2O5 . It is used to sweeten diet
  foods, coffee and soft drinks. How many moles of
  aspartame are present in a can of diet cola?

11

• A can of diet cola contains about 200.0 mg of
  the artificial sweetener aspartame (Nutra-Sweet)
  formula C14H18N2O5 . 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
12

• A can of diet cola contains about 200.0 mg of
  the artificial sweetener aspartame (Nutra-Sweet)
  formula C14H18N2O5 . 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
0.001g
mg
13

• A can of diet cola contains about 200.0 mg of
  the artificial sweetener aspartame (Nutra-Sweet)
  formula C14H18N2O5 . 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
0.001g
mol
mg
g
14

• A can of diet cola contains about 200.0 mg of
  the artificial sweetener aspartame (Nutra-Sweet)
  formula C14H18N2O5 . 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
0.001g
mol
6.803 x 10-4 mol C14H18N2O5
mg
294.0 g
15
How many aspartame molecules would you consume
for each can of diet cola that you drank?
16
How many aspartame molecules would you consume
for each can of diet cola that you drank?
6.803 x 10-4 mol C14H18N2O5
17
How many aspartame molecules would you consume
for each can of diet cola that you drank?
6.803 x 10-4 mol C14H18N2O5
mol
18
How many aspartame molecules would you consume
for each can of diet cola that you drank?
6.803 x 10-4 mol C14H18N2O5
molecules
mol
19
How many aspartame molecules would you consume
for each can of diet cola that you drank?
6.803 x 10-4 mol C14H18N2O5
6.02 x 1023 molecules
mol
4.10 x 1020 C14H18N2O5 molecules
20
How many aspartame molecules would you consume
for each can of diet cola that you drank?
6.803 x 10-4 mol C14H18N2O5
6.02 x 1023 molecules
mol
4.10 x 1020 C14H18N2O5 molecules 410,000,000,000
,000,000,000 410 million trillion aspartame
molecules
21
1mol of C14H18N2O5

• What does it weigh?
• 294.0 g
• How many C14H18N2O5s?
• 1 mol or 6.02 x 1023 C14H18N2O5 molecules
• How many carbon atoms?
• 14 mol or 14(6.02 x 1023) or 8.43 x 1024 C atoms
• How many hydrogen atoms?
• 18 mol or 18 (6.02 x 1023) or 1.08 x 1025 H atoms
• How many nitrogen atoms?
• 2 mol or 2(6.02 x 1023) or 1.20 x 1024 N atoms
• How many oxygen atoms?
• 5 mol or 5 (6.02 x 1023) or 3.01 x 1024 O atoms
• How many total atoms?
• 39 mol or 39(6.02 x 1023) or 2.35 x 1025 atoms

22
How many carbon atoms would be contained in 145g
of aspartame?

• Remember that aspartame is C14H18N2O5 and it has
  a gram formula mass of 294.0 g/mol.

23
How many carbon atoms would be contained in 145g
of aspartame (C14H18N2O5)?

• 4.16 x 1024 C atoms

24
How many grams of aspartame contain 8.74 x 1022
oxygen atoms?

• Aspartame is C14H18N2O5 and it has a molar mass
  of 294.0 g/mol.

25
How many grams of aspartame (C14H18N2O5) contain
8.74 x 1022 oxygen atoms?

• 8.54 g of aspartame

26
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.