Chapter 8
The Mole
Part 2
What is Avogadro’s Favorite Music
What is Avogadro’s Favorite Music
6.02 x 1023 ___________
What else doe one
mol C12 H22O11 equal?
= 12 mol C
= 22 mol H
= 11 mol O
How many moles of copper (II)
sulfate are in this 0.14g sample?
How many moles of copper (II)
sulfate are in this 0.14g sample?
0.00088 mol CuSO4
How many oxygen atoms are
present in the 0.14g sample of
copper (II) sulfate are in this?
How many oxygen atoms are
present in the 0.14g sample of
copper (II) sulfate are in this?
2.2 x 1021 O atoms
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?
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
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
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
mg
mol
g
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
mg
mol
294.0 g
6.803 x 10-4 mol C14H18N2O5
How many aspartame molecules would you
consume for each can of diet cola that you drank?
How many aspartame molecules would you
consume for each can of diet cola that you drank?
6.803 x 10-4 mol C14H18N2O5
How many aspartame molecules would you
consume for each can of diet cola that you drank?
6.803 x 10-4 mol C14H18N2O5
mol
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
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
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
• What does it weigh?
– 294.0 g
• How many C14H18N2O5’s?
14 18 2 5
– 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
1mol of
C H NO
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.
How many carbon atoms would be contained
in 145g of aspartame (C14H18N2O5)?
4.16 x 1024 C atoms
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.
How many grams of aspartame (C14H18N2O5)
contain 8.74 x 1022 oxygen atoms?
8.54 g of aspartame