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100908Chem116lecture - Ch 15 Acids Bases and pH Arrhenius...

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Arrhenius Acids increase the concentration of H + in aqueous solutions Bases increase the concentration of OH - in aqueous solutions Ch 15 - Acids, Bases and pH Bronsted-Lowry Acids are molecules or ions that give up protons (H + ) Bases are molecules or ions that grab up protons (H + )
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NH 3 + H 2 O NH 4 + + OH - CO 3 2- + H 2 O HCO 3 - + OH - Amphoteric (Amphiprotic) can act as either an acid or a base Several bases do not have obvious OH, but they pull a proton from water, leaving OH - H 2 O HCO 3 -
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