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Solve the following problem: A 0.9471 g sample containing dimethylphthalate, C6H4(COOCH3)2 (194.19 g/mol) and non-reactive chemical species was heated by reflux 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- + 2CH3OH After the reaction was complete, the excess NaOH was back-titrated with 24.27 mL of 0.1644 M HCl. Calculate the percent dimethylphthalate in the sample.

Solve the following problem: A 0.9471 g sample containing dimethylphthalate, C6H4(COOCH3)2 (194.19 g/mol) and non-reactive chemical species was heated by reflux 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- + 2CH3OH After the reaction was complete, the excess NaOH was back-titrated with 24.27 mL of 0.1644 M HCl. Calculate the percent dimethylphthalate in the sample.

Macroscale and Microscale Organic Experiments
Macroscale and Microscale Organic Experiments
7th Edition
ISBN:9781305577190
Author:Kenneth L. Williamson, Katherine M. Masters
Publisher:Kenneth L. Williamson, Katherine M. Masters
Chapter7: Extraction
Section: Chapter Questions
Problem 1Q
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Solve the following problem:

A 0.9471 g sample containing dimethylphthalate, C6H4(COOCH3)2 (194.19 g/mol) and non-reactive chemical species was heated by reflux 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- + 2CH3OH

After the reaction was complete, the excess NaOH was back-titrated with 24.27 mL of 0.1644 M HCl. Calculate the percent dimethylphthalate in the sample.

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