Lab 6_Determination of the Dissociation Constant of a Weak Acid - Lab Report.docx

Lab 6_Determination of the Dissociation Constant of a Weak Acid - Lab Report.docx

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Anthony Sorrentino Chm124 Prof: Hirul Patel Lab 6: Determination of the Dissociation Constant of a Weak Acid List of Chemicals with Safety Hazard: - Unknown acid – hazards and makeup unknown - Sodium Hydroxide NaOH - Hazards - Like other corrosive acids and alkalis, drops of sodium hydroxide solutions can readily decompose proteins and lipids in living tissues via amide hydrolysis and ester hydrolysis, - Phenolphthalein- C20H14O4-Phenolphthalein's common use is as an indicator in acid- base titrations. It also serves as a component of universal indicator, together with methyl red, bromothymol blue, and thymol blue. Phenolphthalein adopts four different states in aqueous solution: Under very strongly acidic conditions, it exists in protonated form, providing an orange coloration. Procedure : - Weigh out approximately 0.2 grams of the acid which will be tested. The exact mass is not vital to the experiment because we are interested in the concentrations not the mass.
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