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The Mole - Mr. Glass

Introduction to the mole for High School Chemistry
by

Scott Glass

on 17 February 2016

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Transcript of The Mole - Mr. Glass

THE MOLE
A MOLE
IS NOT
A MOLE IS
6.02 x 10
23
1 mol equals 602,214,179,000,000,000,000,000
it's a NUMBER used to
MEASURE AMOUNT

1 dozen = 12

1 mol = 6.02 x 10
One mol of C is 12.00g
12
6
That's the # of these:
p
p
p
p
p
p
You need to make 12.00 grams
12.00g is 6.02 x 10 single atoms of Carbon-12
23
or 602,214,179,000,000,000,000,000 atoms
mass number
atomic number
1 mol of Hydrogen weighs 1.0079g
1 mol of Cobalt weighs 58.93g
1 mol of Oxygen
1 mol of Uranium
1 mol of Gold
1 mol of Nitrogen
H
Co
O
U
Au
N
Since there's 3 different isotopes of carbon, 1 mol of carbon will weigh 12.01g
C
C
C
98.93%
1.07%
.000000001%
12

13

14
-
-
-
e
-
e
e
e
e
-
e
-
n
n
n
n
n
n
+
+
+
+
+
+
o
o
o
o
o
o
6.02 x 10
23
But the periodic table says carbon is 12.01g ...
So 12.01 is the
In order to have 1 mol of carbon in the real world, you need 12.01 grams of the black stuff.
REAL WORLD AVERAGE
Try this:
If you have 3.5 mol of Carbon, how many atoms are there?
well, we know that 1 mol is 6.02 x 10 so,
23
3.5 mol
6.02 x 10 atoms
1 mol
23
= 2.1 x 10 atoms
24
How much does 3.50 mol of Carbon weigh?
The periodic table says 1 mol weighs 12.01g
3.50 mol
12.01 grams
1 mol
3.50 x 12.01 = 42.0 grams
How many atoms are in 10.0 mol of gold?
How many atoms are in 0.0825 mol of sulfur?
How many molecules are in 0.39 mol of carbon monoxide?
How many atoms in 0.39 mol of CO?
What does 15.4 mol of water weigh?
What does 1 mol of water weigh?
How many moles are in 0.018 g of Fe?
What does 3.75 mol of Cobalt weigh?
*your recomended daily value
abbreviated
I think from here on you can say "that's a lot of atoms"
Abundance on Earth
or shiny clear rock stuff
1 dozen eggs = 12 eggs

1 mol of eggs = 602,214,179,000,000,000,000,000 eggs
1 mol of muffins = 602,214,179,000,000,000,000,000 muffins
1 mol of elephants = 602,214,179,000,000,000,000,000 elephants
1 mol of sand grains = 602,214,179,000,000,000,000,000 sand grains
1 mol of cat videos = 602,214,179,000,000,000,000,000 cat videos
1 mol of songs on my iphone = 602,214,179,000,000,000,000,000 songs
1 mol of Valentine's Cards = 602,214,179,000,000,000,000,000 Valentine's Cards
1 mol of broken hearts = 602,214,179,000,000,000,000,000 broken hearts
1 mol of atoms = 602,214,179,000,000,000,000,000 atoms
1 mol of molecules = 602,214,179,000,000,000,000,000 molecules
1 mol of dollars = a molinaire!
12 atoms
one mol
one dozen
OR BUCKMINSTERFULLERINES!!
1
3
4
5
6
2
7
8
23
OR GRAPHENE!!!
What is the mole's favorite movie?
Guardians of the Molaxy

What's the mole's favorite college football team?
The Florida State Semimoles

Who is the the mole's favorite actor?
Mole Gibson

What is the mole's favorite band?
Moleford and sons

Why are moles bad at counting?
Because they only know one number.

What's the mole's favorite brand of soda?
Coca-Mola.

What's the mole's favorite Jedi?
Molbi-won Kenobi

What's the moles favorite color?
Mole-genta

Why do moles love mexican steaks?
Mol-A-1 sauce

Why are moles always on the phone?
Because they love moleble devices.

Why do moles love Tyra Banks?
Because she's on America's Next Top Moledel

What is the mole's favorite line from the Wizard of Oz?
"I'm mole-ting, I'm mole-ting."

Why don't moles like teenage actresses?
Lindsay Molehan and Moley Cyrus that's why!

Why are moles always eating?
Because they're molenourished.

What is the mole's favorite Adele song?
Mole-in' in the deep
5.45 x 10 atoms of W is how many mol?
7.45 x 10 atoms of C has what mass in g?
23
23
A sample of Ni weighs 2.34 g, how many mol?
Phosphorus has a mass of 75.2 g, how many atoms are in that sample?
Too easy?
Try these:
Super-Secret BONUS ?'s
carbon
6 protons
6 electrons
6 neutrons
The average mass of carbon = 12.01 g
Sig Figs
Atoms
grams
mass
mol
6.02 x 10 atoms = 1 mol
23
molar mass (g) = 1 mol
the conversion guide:
this video goes way further than we need, but the first 8 min are Au!
How would you compare atoms and grams?
Try this:
3.5 x 6.02 x 10
23
Try this:
5.42 x 10 atoms of Oxygen, how many mol?
well, we know that 1 mol is 6.02 x 10 so,
23
5.42 x 10 atoms
1 mol
6.02 x 10 atoms
23
= .900 mol O
How many mol in 4.59g of Silicon?
The periodic table says 1 mol weighs 28.04g
4.59 g
1 mol
28.04 g
4.59 / 28.04 = 0.164 mol
Try this:
(5.42 x 10 ) / (6.02 x 10 )
23
23
23
23
mole
mole
mole rat
mole
guacamole
Full transcript