Ch.5 Notes - CHAPTER 5 Ions in water Requirement Topics...

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CHAPTER 5 Ions in water – Requirement!!! Topics: Electrolytes Types of Reactions o Acid/Base o Precipitation Net Ionic Equations Stoichiometry (old stuff) o Molarity o Titrations Reactions in Solution Chemical reactions typically take place in a solution o Why? You need mobility, makes collision faster and harder, greater likelihood of creating a product Reactants need freedom of motion to collide and change composition DEFINITIONS: o Solution – homogeneous mixture o Solute – substance dissolved in a solvent o Solvent – dissolving medium Solution types: o Saturated solution – maximum amount of solute dissolved in solution o Unsaturated solution – any amount of solute less than the maximum possible is dissolved in solution o Supersaturated solution – a solution in which the maximum amount of dissolved solute is exceeded. (requires heating) Solubility – expression of solution composition o Qualitative: Dilute solution – ratio of solute/solvent =small Concentrated solution – ratio of solute/solvent =large o Quantitative: Note that solubility is T(temperature) dependent % concentration – g solute/100g solvent x100 Molarity (more later) – IMPORTANT!!!
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