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Class Notes for Chemistry at Simon Fraser University

CHEM 121 Lecture Notes - Lecture 37: Barium Chloride, Chch-Dt
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CHEM121 ­ Lecture 37 ­ Electrolyte Solutions and Review    Colligative properties of electrolyte solutions  ● The colligative properties on a solution depends on the total concentration of the solute  particl...

Chemistry
CHEM 121
Lee Hanlan
CHEM 121 Lecture Notes - Lecture 36: Methanol, Chch-Dt, Supercooling
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CHEM121 ­ Lecture 35 ­ Changes of State and Properties of Solutions    Energy and changes of state  ● Temperature remains constant during a phase change  ● Specific heat of a substance is the energy required to...

Chemistry
CHEM 121
Lee Hanlan
CHEM 121 Lecture 34: Vapour Pressure and Change of State
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CHEM121 Lecture 34 Vapour Pressure and Change of State Vapour pressure Vapourization (or evaporation): the passage of molecules from the surface of a liquid into the gaseous state Endothermic process: energy required to ov...

Chemistry
CHEM 121
Lee Hanlan
CHEM 121 Lecture Notes - Lecture 35: Ethylene Glycol, Diethyl Ether, Vapor Pressure
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CHEM121 - Lecture 35 - Changes of State and Properties of Solutions Energy and changes of state ● Temperature remains constant during a phase change ● Specific heat of a substance is the energy required to r...

Chemistry
CHEM 121
Lee Hanlan
CHEM 121 Lecture Notes - Lecture 33: Surface Tension, Capillary Action, London Dispersion Force
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CHEM121 - Lecture 33 - London Dispersion Forces and the Liquid State London dispersion forces ● Relatively weak forces that exist among all atoms (polar and nonpolar) ● Due to the formation of an instantaneous ...

Chemistry
CHEM 121
Lee Hanlan
CHEM 121 Lecture 32: MO Diagrams and Heteronuclear Diatomic Molecules
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CHEM121 Lecture 32 MO Diagrams and Heteronuclear Diatomic Molecules MO diagrams The MO diagram using sp mixing correctly predicts that B is a paramagnetic molecule 2 For O and F, no sp mixing since p and s orbitals are far...

Chemistry
CHEM 121
Lee Hanlan
CHEM 121 Lecture Notes - Lecture 31: Antibonding Molecular Orbital
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CHEM121 ­ Lecture 31 ­ The Molecular Orbital Model and Bonding in Homonuclear  Diatomic Molecules    Diamagnetic vs. Paramagnetic  ● Diamagnetic species: A species (molecule, atom, ion) that has all of its electrons...

Chemistry
CHEM 121
Lee Hanlan
CHEM 121 Lecture Notes - Lecture 30: Valence Bond Theory, Trigonal Planar Molecular Geometry, Orbital Hybridisation
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CHEM121 - Lecture 30 - Hybridization and Shortfalls of the LE Bonding Theory Hybridization of outer atoms ● ex. PCl5: each Cl has four pairs of electrons, three lone pairs and one pair shared with phosphorus....

Chemistry
CHEM 121
Lee Hanlan
CHEM 121 Lecture Notes - Lecture 29: Dipole, Valence Bond Theory, Valence Electron
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CHEM121 - Lecture 29 - Hybridization of Atomic Orbitals Drawing 3D structures ● Single solid lines indicate the bond lies in the plane of the paper ● Hashed wedge lines indicate the bond projects back into the ...

Chemistry
CHEM 121
Lee Hanlan
CHEM 121 Lecture 28: Predicting Molecular Geometries VSEPR Theory
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CHEM121 ­ Lecture 28 ­ Predicting Molecular Geometries: VSEPR Theory    Lewis structures  ● Use formal charge to determine if a particular Lewis structure is a reasonable possibility  or to evaluate the import...

Chemistry
CHEM 121
Lee Hanlan
CHEM 121 Lecture 27: Lewis Structures
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CHEM121 ­ Lecture 27 ­ Lewis Structures    Lewis structures  ● ex. NO​ 3​ N(5) + 3O(6) + (­) = 24 valence electrons  3 equivalent resonance structures: ...

Chemistry
CHEM 121
Lee Hanlan
CHEM 121 Lecture Notes - Lecture 26: Vsepr Theory
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CHEM121 ­ Lecture 26 ­ Covalent Bonding Models and Resonance    Covalent bond energies  ● Chemical reactions involve the rearrangement of atoms   ● Rearrangement involves breaking existing bonds and forming new ...

Chemistry
CHEM 121
Lee Hanlan
CHEM 121 Lecture Notes - Lecture 24: Lattice Energy, Ionic Compound, Isoelectronicity
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CHEM121- Lecture 24 - Bonding and Relative Ion Size Electron configurations ● Elements on the left-hand side of periodic table lose electrons and elements on the right- hand side gain electrons ● The...

Chemistry
CHEM 121
Lee Hanlan
CHEM 121 Lecture 19: The Quantum Mechanical Description of the Atom
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CHEM121 ­ Lecture 19 ­ The Quantum Mechanical Description of the Atom    Quantum mechanics model  ● Bohr model does not take into account wave properties of an electron  ● More advanced model required  ● Sh...

Chemistry
CHEM 121
Lee Hanlan
CHEM 121 Lecture 22: Electron Configurations
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CHEM121 ­ Lecture 22 ­ Electron Configurations    Valence Electrons in Periodic Table  ● Elements in the same group (column) have the same valence electron configuration  ○ Show similar properties  ...

Chemistry
CHEM 121
Lee Hanlan
Inorganic Chemistry - Reference Guides

This Guide provides invaluable reference material to anyone who requires readily accessible information concerning the basic principles that underlie this complex science. The Guide carefully references the Periodic Table ...

Chemistry
CHEM 30100
All Professors
Permachart - Marketing Reference Guide: Iupac Nomenclature Of Inorganic Chemistry, Lithium Aluminium Hydride, Polyatomic Ion

p e r m a c h a rt s MT I n o r g a n i c C h e m i s t r y N o m e n c l a t u r e ...

Chemistry
CHEM 30100
All Professors
Permachart - Marketing Reference Guide: Locant, Parent Structure, Substituent

permacharts TM O r g a n icC h e m is t ryN o m e n c la t u r e Nam...

Chemistry
CHEM 22700
All Professors
Permachart - Marketing Reference Guide: Beta Particle, Beta Decay, Atomic Number

permacharts TM Periodic Table of the Elements ...

Chemistry
CHEM 11100
All Professors
Permachart - Marketing Reference Guide: Carnot Heat Engine, Carnot Cycle, Isentropic Process

permacha srtM PHYSICAL CHEMISTRY Basics Adiabatic process in which no heat is transferred into or out Internal energy The total kinetic and potent...

Chemistry
CHEM 11100
All Professors
Introductory Chemistry - Reference Guides

This Guide serves as a well organized and effective point of entry for anyone embarking upon the study of Chemistry. All fundamental terms are clearly organized in chart form, with illustrative graphics. More complex conce...

Chemistry
CHEM 11100
All Professors

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