The Mole

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Chapter 8

• The Mole
• Part 2

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What is Avogadros Favorite Music
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What is Avogadros Favorite Music
a
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(No Transcript)
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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
6

• 1 mole Al ?

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• 1 mole Al ?
• 1 mole Al 27.0 g Al

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What are the conversion factors?

• 1 mole Al 27.0 g Al

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What are the conversion factors?

• 1 mole Al 27.0 g Al
• 27.0g Al or 1 mol Al
• 1 mol Al 27.0 g Al

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What are the conversion factors?

• 1 mole Al 27.0 g Al
• 27.0g Al or 1 mol Al
• 1 mol Al 27.0 g Al

Aluminum is often used for the structure of
light-weight bicycle frames. How many grams of
Al are in 3.62 moles of Al?
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• 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

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• 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
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• 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?

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• 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
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• 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
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• 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
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• 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
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How many aspartame molecules would you consume
for each can of diet cola that you drank?
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How many aspartame molecules would you consume
for each can of diet cola that you drank?
6.803 x 10-4 mol C14H18N2O5
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How many aspartame molecules would you consume
for each can of diet cola that you drank?
6.803 x 10-4 mol C14H18N2O5
mol
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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
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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
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1mol of C14H18N2O5

• What does it weigh?
• 294.0 g
• How many C14H18N2O5s?
• 6.02 x 1023 C14H18N2O5 molecules
• How many carbon atoms?
• 14(6.02 x 1023) C atoms
• How many hydrogen atoms?
• 18(6.02 x 1023) H atoms
• How many nitrogen atoms?
• 2(6.02 x 1023) N atoms
• How many oxygen atoms?
• 5(6.02 x 1023) O atoms
• How many total atoms?
• 39(6.02 x 1023) atoms

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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.

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

• 4.16 x 1024 C atoms

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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.

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

• 8.54 g of aspartame

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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.