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AVOGADRO’S
LAW
4 mol of C. How can we convert to the
number of atoms?
4 mol C
1
6x10
atoms =24 × 10
1 mol C
ATOM
5 mol of CH4, Convert
it into Moles to
Molecule CH4, and
Atoms of H.
5 mol CH4 6x10 molecules
1
1 mol CH4
30X10
=3.0X10
molecules
5mol CH4 × 6 × 10
4 atom H
mol CH4 molecule
120× 10
=1.20×10
CH4
4 mol of AlCl3,How
formula units and
also Cl ions
on this sample.
4mol AlCl3
6× 10
f.units 3Cl ions
1mol AlCl3
1 f.unit
2.4×10 f.units
7.2×10 cl ions
3×10 atoms of H, How
can we convert into
moles of H?
3×10 atoms
1
1mol H
6.10 atoms
CALCULATE THE
MOLAR MASS OF
A COMPOUND
C2H6.
C2H6
2(12)+6(1)
=24+6
=30 amu
=30g/mol
34g Amonium (NH3),
CONVERT IT INTO
GRAMS TO MOLES.
.
34g NH3 14 + 3(1) = 17g/mol
34gNH3
1
=2mol NH3
1mol NH3
17g NH3