A 0.8065-g sample containing dimethylphthalate (DMP), C6H4(COOCH3)2 (194.19 g/mol), and unreactive species was refluxed with 50.00 mL of 0.1215 M NaOH to hydrolyze the ester groups (this process is called saponification). C6H4(COOCH3)2 + 2OH- ------> C6H4(COO)22- + 2 CH3OHAfter the reaction was complete, the excess NaOH was back titrated with 24.27 mL of 0.1644 M HCl. Calculate the percentage of dimethylphthalate (DMP) in the sample. Express your answers with 3 decimal places

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Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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A 0.8065-g sample containing dimethylphthalate (DMP), C₆H₄(COOCH₃)₂ (194.19 g/mol), and unreactive species was refluxed with 50.00 mL of 0.1215 M NaOH to hydrolyze the ester groups (this process is called saponification).

C₆H₄(COOCH₃)₂ + 2OH^- ------> C₆H₄(COO)₂^2- + 2 CH₃OH

After the reaction was complete, the excess NaOH was back titrated with 24.27 mL of 0.1644 M HCl. Calculate the percentage of dimethylphthalate (DMP) in the sample.

Express your answers with 3 decimal places

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