Lab5_VinegarAnalysis

Lab5_VinegarAnalysis - C 125 Ex eimntal Che istry 1 pr e m...

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Vinegar Analysis C125 Prelab C125 Exp er im en tal Che m i st ry 1
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Purpose Investigate what is meant by : Acids and bases Acid-base reactions Acid-base titrations and indicators Equivalent point and end point Determine : Acetic acid concentration Mass % of acetic acid in vinegar
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Acids and Bases Acids: substances that produce H + in solution Ex. HCl, SO
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4 Acid-Base Reactions also called neutralization reactions because the acid and base neutralize each other’s properties in the reaction of an acid with a base, the H + from the acid combines with the OH - from the base to make water the cation from the base combines with the anion from the acid to make the salt acid + base salt + water 2 HNO 3 ( aq ) + Ca(OH) 2 ( aq ) Ca(NO 3 ) 2 ( aq ) + 2 H 2 O( l )
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5 Titration often in the lab, a solution’s concentration is determined by reacting it with another material and using stoichiometry – this process is called titration the unknown solution is added slowly from an instrument called a burette a long glass tube with precise volume markings that allows small additions of solution
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This note was uploaded on 11/02/2009 for the course CHEM C125 taught by Professor Staff during the Fall '08 term at IUPUI.

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Lab5_VinegarAnalysis - C 125 Ex eimntal Che istry 1 pr e m...

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