1. The Mole & Mole-Particle Conversions
Measuring Matter
Measure amounts of something with three different methods—
by count, by mass, and by volume.
Which of these is measured by count? by mass/weight? by volume?

2. video clip (x Billons x 10 thousands?) (way more than )
video clip – TEDEd How big is a mole (4 min)
video clip

3. 1 mole of atoms is about 602,200,000,000,000,000,000,000
atoms!

4. 2
Avogadro’s Constant
“real” value from wikipedia: (74)×1023 

5. How do we get the number? The mole is the amount of substance of a system which contains as many things as there are atoms in 12 grams of carbon- 12; its symbol is "mol".

8. The Pacific Ocean contains approx. 1 mole of mL of water.

9. Which weighs more?
Which has more animals?
6.022 x 1023 atoms of Ne
6.022 x 1023 atoms of C
( grams)
( grams)
Which weighs more?
Which has more atoms?
The number of grams in a mole of particles is different by substance.

11. A mole of any substance contains Avogadro’s number of particles,
or  1023 particles.
(particles = atoms, molecules, units…)
Type 1
Moles Particles
3.0 mol x x 1023 atoms = _____ atoms
1 mol
Mole = Latin “pile, heap, or mass”
Type 2
Particles Moles
1.5 x 1024 molecules x mol of molecules = ___ mol of molecules
6.022 x 1023 molecules

12. 1.28 x 1024 molecules of propane gas
Type 1
Moles Particles
How many molecules are in 2.12 mol of propane gas (C3H8) ?
2.12 mol x
_________________ =
1 mol
6.022 x 1023 molecules ___ molecules
1.28 x 1024 molecules of propane gas

13. Type 2
Particles Moles
1 mol ___ mol
1.25 x 1023 atoms x
_____________ =
6.022 x 1023 atoms
0.208 mol

14. How many moles is 2.17 x 1024 molecules of Br2 ? Type 2
Particles Moles
2.17 x 1024 molecules x
________________ =
6.022 x 1023 molecules
1 mol ___ mol
3.60 mol

15. How many atoms are in 1.14 mol SO3?
Moles Particles
1.14 mol x x 1023 molecules
1 mol
x 4 atoms =
1 molecule
Type 1 (plus)
WS Moles & Molar Mass
2.75 x 1024 atoms