The Chemistry of Titanium 1e – Bonding and Properties.
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Transcript of The Chemistry of Titanium 1e – Bonding and Properties.
![Page 1: The Chemistry of Titanium 1e – Bonding and Properties.](https://reader031.fdocuments.in/reader031/viewer/2022020219/56649e755503460f94b7634d/html5/thumbnails/1.jpg)
The Chemistry of Titanium
1e – Bonding and Properties
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Learning Intentions
• To relate Melting and Boiling Point, Electrical Conductivity, Viscosity and Solubility to the structure and bonding of substances
• To use information on substances to identify the bonding present
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Melting and Boiling PointsSubstance Bond broken Melting/boiling point
Metal Metallic High
Ionic Lattice Ionic bond High
Covalent Network Covalent bond High
Covalent Molecule Van der Waals forces Low
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• General Rule:
• The stronger the bond or force that needs to be broken to get the substance to melt or boil, the higher its melting or boiling point
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Viscosity of Liquids
• The stronger the force of attraction between molecules the greater the viscosity or thickness of the liquid
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Electrical Conductivity in Metals
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Electrical Conductivity in Ionic Liquids
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General rule for Electrical Conductivity
• In order for something to conduct it must contain charged particles (electrons or ions) that are free to move
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Solubility
• General Rule: • As a rule of thumb, in terms of solubility, “like
dissolves like”• Ionic substances dissolve in polar solvents
eg ammonium chloride in water`• Non-polar dissolve in non-polar solvents eg wax in paraffin / nail polish in acetone
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Polar Molecules
Water is a polar molecule so it is a polar solvent.
A liquid that substances dissolves in is called a SOLVENT. Solvents can be either polar or non-polar molecules.
Immiscible liquids do not mix, e.g. oil and water, however, non-polar liquids are miscible with each other.
Polar solvents will usually dissolve polar molecules.
Non-polar solvents will usually dissolve non-polar molecules.
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Dissolving in WaterGenerally, covalent molecules are insoluble in water. However, small moleculeslike ethanol (C2H5OH), with a polar O-H functional group, will dissolve,
Hydratedions
Ionic Compound dissolvingin water
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H2O
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Ethanol
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O
H
H H
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H
C C
H
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Dissolving in a non-polar solvent