acid base titrations

acid base titrations - Date Preformed: 9/29/08 Date...

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Date Preformed: 9/29/08 Name: Joshua Oliver Date Submitted: 10/06/08 Partner: Earl Dodge Instructor: Ali Nebipasagil Acid-Base Titrations Objective: To standardize a sodium hydroxide solution by its reaction with a hydrochloric acid solution of known concentration. To determine the molar mass of an unknown, monoprotic acid. To determine the percentage of acetylsalicylic acid in an aspirin tablet. Materials: two 50mL burets, ring stand, buret clamp, 75mL standard HCL solution, 125Ml NaOH solution, 2 g unknown acid, phenolphthalein indicator solution, aspirin tablet Experimental Data: First titration of HCl with NaOH: 25.35mL NaOH Second titration of HCl with NaOH: 25.20mL NaOH Mass of unknown acid first sample=1.006g Mass of unknown acid second sample=1.001 First titration of unknown acid titrated against NaOH: 23.70mL NaOH Second titration of unknown acid titrated against NaOH: 23.55mL NaOH Weight of aspirin tablet=.364g Volume of NaOH to fully react with the Acetylsalicylic acid in the aspirin= 7.95mL NaOH
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This note was uploaded on 06/19/2009 for the course CHEM 1035 taught by Professor Jgdillard during the Fall '07 term at Virginia Tech.

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acid base titrations - Date Preformed: 9/29/08 Date...

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