The units in these conversions are:
-Grams
-Moles
-Particles/Atoms/Molecules/Formula Units
-# of Atoms in Particles
From Grams to Moles, you multiply using 1 Mole
MMg
From Moles to Grams, you multiply using MMg
1 Mole
MMg = Molar Mass grams
From Moles to Particles/Atoms/Molecules/Formula Units, you multiply using
6.022 x 10^23 Particles
1 Mole
From Particles/Atoms/Molecules/Formula Units to Moles, you multiply using
1 Mole
6.022 x 10^23 Particles
From Particles/Atoms/Molecules/Formula Units to # of Atoms in Particles, you multiply using
# of Atoms
1 molecule
From # of Atoms in Particles to Particles/Atoms/Molecules/Formula Units, you multiply using
1 molecule
# of Atoms
Conversions from Particles to Mass
Ex. What is the mass of 2.78 x 10^22 Fe Atoms?
2.78 x 10^22 Fe Atoms x 1 Mole x 55.8 g (Molar Mass)
6.022 x 10^23 Fe Atoms 1 Mole
= 2.58 g
Ex. What is the mass of 8.4 x 10^18 SO3 molecules?
8.4 x 10^18 molecules x 1 Mole x 8.01 g (Molar Mass)
6.022 x 10^23 Molecules 1 Mole
= 1.1 x 10^-3 g OR 0.0011 g
Conversions from Grams to Particles
Ex. How many atoms of Iron in 20.0 g of Iron?
20.0 g x 1 Mole x 6.022 x 10^23 Atoms
55.8 g (Molar Mass) 1 Mole
= 2.16 x 10^23 Atoms of Fe
Here is a video that demonstrates from Grams to Atoms (Skip to 4:10 in the video)
Ex. How many formula units of KMnO4 in 0.240 g of KMnO4?
0.240 g x 1 Mole x 6.022 x 10 ^23
158.0 g 1 Mole
= 9.15 x 10^20 Formula Units
QUIZ NEXT CLASS (Nov.25) ON MOLE CONVERSIONS!!!!!
QUIZ HOOOOOOOOOOOOOOOOOOO! RIGHT ON! OKAYY!!!
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