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Molecular Crystals

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by

Fortunate Douglas

on 15 October 2013

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Transcript of Molecular Crystals

Molecular Crystals
Definition
A solid consisting of a lattice array of molecules, bound by weak Van Der Waals forces, therefore retaining most of their individuality.
General Description
Molecule's are packed closely as possible
Generally low melting points
Generally not hard
Non-Conductors of electricity
Component Particles
Neutral Molecules/Atoms
3D MODEL
What does a Molecular Crystal Look Like?
Everyday Examples of
Molecular Crystals
Properties
of our
Example Compounds
Van Der Waals
Dipole-Dipole
Dipole-induced Dipole
Hydrogen Bonding
London Force
The number of electrons around the nuclei is the same as the number of protons in the nuclei, therefore there is no charge.
Ice
Solid Carbon Dioxide (Dry Ice)
Rock Candy
Molecular Crystal
Compounds

HCl
SO4
N2
Ar
CH4
H2O
THANKS FOR LISTENING
Neutral Molecule/Atom
H2O
B.P: 99.98 C
M.P: 0.0 C
Name: Water
Appearance: White/ Transparent
Conductivity: does not conduct
Soluble
Density:
1000 kg/m3
SO4
Name: Sulfur Dioxide
Appearance: Colourless
B.P: -10 C
Conductivity: -35.5
M.P: -72 C
Density:
2.6 kg/m3
Soluble
N2
Appearance: Clear/Colourless
Name: Nitrogen Gas
B.P: -195.795 C
Conductivity: 0 C
M.P: -210 C
Density:
1.2 kg/m3

Soluble
Ar
Name: Argon
Appearance: Colourless
B.P: -185.848 C
Conductivity: Very Low
M.P: -189.34 C
Density:
1.7 kg/m3
Soluble
CH4
Name: Methane
B.P: -164 C
Appearance: Colourless
Conductivity: 0 C
M.P: -182 C
Soluble
Density:
0.66 kg/m3
HCl
Name: Hydrochloric Acid
Appearance: Colourless
B.P: -85.1 C
Conductivity: 0 C
M.P: -114.8 C
Soluble
Density:
1.56 kg/m3
Full transcript