chap7 - Chap 7 ACIDS and BASES 1. a) Definition -Latin...

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1 Chap 7 ACIDS and BASES 1. a) Definition -Latin (acidus) = sour, vinegar and lemons. Arrhenius definition – Acid produces H + HX H + (aq) + X - (aq) HBr H + (aq) + Br - (aq) b) Bases- are ionic compounds that separate to give a metal ion and hydroxide ions. (OH - ) KOH K + (aq) + OH - (aq) 2. Further defining acids and bases. Bronsted-Lowry Acid and bases. Acid- donates a proton ( H + ) base- accepts a proton ( H + ) hydronium ion = H 3 O + NaOH + H 2 O H 2 O + OH - (aq) + Na + (aq) Base Acid Acid Base H O H + H + H O H H + H 2 O + HBr H 3 O + + Br - base acid acid base
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2 3. Formation of Acids and Base a) Non-metal oxides: formation of acid. General equation: Non-metal oxide + H 2 O acid Ex. SO 3 + H 2 O H 2 SO 4 Ex. CO 2 + H 2 O H 2 CO 3 Leads to acid rain: rain is slightly acidic because of carbon dioxide in the air. Pollutants such as SO 2 and from burning high sulfur coal and metal smelters. Also volcanoes give off sulfur oxides S + O 2 SO 2 2SO 2 + O 2 2SO 3 SO 3 + H 2 O H 2 SO 4 marble 2H + + CaCO 3 CO 2 + H 2 O + Ca 2+ NO from and NO 2 from car exhaust and from lightening.
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This note was uploaded on 09/02/2011 for the course CHEM 10 taught by Professor Harrison during the Spring '11 term at West Valley.

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chap7 - Chap 7 ACIDS and BASES 1. a) Definition -Latin...

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