thehydrogenionsh are producedbythedissociation

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Unformatted text preview: on means sodium chloride, which is a salt under this definition. It appears that acid properties are often opposite to base properties, and vice versa; a base is an anti­acid, and an acid is an anti­base. Several theories have been proposed to answer the question “What is an Acid or a Base?” One of the earliest and most significant of these theories was proposed by a Swedish scientist, Svante Arrhenius in 1884. According to Arrhenius: AN ACID A BASE Is a hydrogen­containing substance that dissociates to + produce hydrogen ions, H , in aqueous solutions Is a hydroxide­containing substance that dissociates to produce hydroxide ions, OH , in aqueous solutions. + The hydrogen ions, H , are produced by the dissociation of acids in water The hydroxide ions, OH , are produced by the dissociation of bases in water + HA ¾¾¾¾> H + A Acid + MOH ¾¾¾¾> M + OH Base An ACID SOLUTION contains an + excess of hydrogen ions, H . A BASE SOLUTION contains an excess of hydroxide ions, OH . Examples: HCl(aq), H2SO4(aq) Examples: 2 NaOH(aq), Ca(OH)2(aq) Chemistry...
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This document was uploaded on 03/18/2014 for the course CHEM 52 at Los Angeles Mission College.

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