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Handout0919 - -when dissolved in water Sample Problem...

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Lecture outline for Wednesday, September 19, 2007 (Chem 100, section 2) Common Reaction Types General Types Combination (addition): Decomposition (elimination): Displacement (group or atom transfer): Double displacement: Familiar combination and decomposition reactions Precipitation Reactions: Additions or Double Displacements? “Molecular” equation (double displacement) Total ionic equation: Net Ionic equation (addition): Properties of acids & bases Most commonly aqueous solutions Acids (vinegar, lemon juice, soft drinks, battery acid) Taste ______ _______ reactive with metals than water ( H 2 ( g )) Turn litmus _______ Bases (soap, ammonia, lime, lye (“Drano”)) Feel ________ Turn litmus _______ React with ______ to “neutralize” (deactivate) them Acids and Bases in the top 50 chemicals Naming acids Arrhenius definition of acids and bases, and acid-base reactions Acid produces H 3 O + when dissolved in water. Base produces OH
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Unformatted text preview: -when dissolved in water. Sample Problem Unknown acid (2.0000 g) is titrated with 0.4000 M NaOH. Endpoint at 20.0 mL. What is molar mass of acid? pH scale and equilibrium Le Chateliers Principle: why NH 3 solutions have pH > 7 Bronsted Definition of Acids and Bases, and acid-base reactions Acid - H + donor Base - H + acceptor Water can be Bronsted acid or a Bronsted base Phenolphthalein is a weak Bronsted acid Redox Reactions Reductant: Electron donor Oxidant: Electron acceptor CHECK ONLINE HW later today FOR HW DUE FRIDAY 9/23 O S O O O H H H Cl O P O O O H H H N O O O H C C C C C C C C O O H O O H H H H H O C O C H H H H C C C O O H H H H O O C C C H H H H H H sulfuric acid nitric acid acetic acid hydrochloric acid adipic acid terephthalic acid phosphoric acid H N H H H ammonium ion C O O O 2-Na + 2 Na + O H-N H H H 2-Ca 2+ O lime (calcium oxide) ammonia sodium hydroxide sodium carbonate (washing soda)...
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