CHM135H1 Chapter Notes - Chapter 1-3: Osmosis, Molar Concentration, Molecular Mass
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CHM135H1 Full Course Notes
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Chapter 1. 4 chemical properties of elements intensive property: does not depend on amount extensive property: does depend on amount. 9 ( 32 ) dimensional-analysis method change units using unit conversion factor. Chapter 2. 1 law of consevation of mass and definite proportions mass is neither created nor destroyed samples of pure compound always contain same proportion of elements by mass e. g h2o. Chapter 2. 2 law of multiple proportions and dalton"s atomic theory same elements combine in different ways, mass rations small whole number multiples of ea/other mass ratioof c : h mass ratioof c : h. Chapter 2. 3 electrons cathode-ray tube: anode and cathode, glass tube, cathode ray (ray of electrons) visible measure deflection by magnet, find: chargeof electron mass of electron. Milikan"s oil-drop: spray oil, +ve plate with pinhole, -ve plate, suspend using voltage, charge of droplet always multiple of e. Rutherfold gold foil: alpha particles at gold foil, very few bounced therefore gold atoms mostly empty space atomic mass.
