CHEM 201 - 9.10.07

CHEM 201 - 9.10.07 - Cl Br I ion salts except with Ag(I...

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CHEM 201 – September 10, 2007 Electrolytes – dissolve in water to produce ionic solutions, which conduct Nonelectrolytes – do not form ions when they dissolve, molecular (e.g. water, non-organic compounds, ethanol, alcohol) Dissociation – compounds split to form ions o Strong Electrolytes – total dissociation (e.g. HCl, HBr, HI) o Weak Electrolytes – partial dissociation (e.g. HF, NH 3 , CH 3 COOH) Precipitation – two solutions combine to form a insoluable solid o Exchange, substitution, replacement of atoms or ions Classes of salts o Always soluble Alkali metal salts of group 1A Ammonium salts of NH4 All salts of NO3, ClO3, ClO4 Most salts of C2H3O2, HCO3 o Salts which are soluble with exceptions
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Unformatted text preview: Cl, Br, I ion salts except with Ag(I), Pb(II), Hg2, AgCl SO4 ion salts are soluble with Ag(I), Pb(II), Hg2, Ca, Sr, Ba, Ra o Salts which are insoluble O, OH salts except with alkali metal ions and Ca, Sr, Ba ions CO3, PO4, S, CrO4, SO3 are insoluble except with alkali metal ions and NH4 Three basic equations for reactions o Molecular equations – All reactants and products are written in molecular form o Ionic equations – dissolved strong electrolytes wchich are written as dissociated ions DO NOT BREAK UP POLYATOMIC IONS o Net Ionic Equations – all ions that are identical on both sides are deleted...
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