Titration of Vinegar

Titration of Vinegar - Titration of Vinegar Anam Ahmad CHEM...

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Titration of Vinegar Anam Ahmad CHEM 211-204 4/8/09 Lab Report
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Purpose: To determine the concentration of acetic acid in vinegar by titrating it with NaOH solution Procedure: 1. Rinse buret with water 2. rinse buret with 5mL NaOH and discard 3. fill buret with NaOH until 0mL mark 4. run 10mL oxalic acid into clean 250mL flask 5. add 2 drops phenolphthalein indicator solution 6. begin titrating oxalic acid with NaOH and shack flask (pink will start to persist) 7. when pink stays for 4-5 sec max is reached 8. repeat steps 4-7 with oxalic acid 9. repeat steps 4-8 with vinegar twice Results: RAW DATA: number_ox number_acet wt_oxalic V1_A V1_B V2_A V2_B V1_Acet V1_B2 V2_Acet V2_B2 2 2 3.2 10 11.2 9.6 13.4 16.5 15 15.9 17.8 2 2 3.2 10 9.5 10.1 10.6 10 17.3 10 17 2 2 3.2 10 10.2 10 9.7 10 16.8 10 16.3 2 2 3.2 9.5 9.5 10 10.8 10 20 10 18.3 2 2 3.2 10 9.5 10 9.6 10 16.6 10 15.7 2 2 3.2 10 10.1 10 10.2 10 16.4 10 17.2 2 2 3.2 10 10.3 10 10.1 10 16.4 10 16.8 2 2 3.2 10 9.8 10 10.4 10 14.9 10 15.1
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Titration of Vinegar - Titration of Vinegar Anam Ahmad CHEM...

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