4.75 An unknown amount of acid can often be determined by adding an excess of base and then "back-titrating" the excess. A 0.3471-g sample of a mixture of oxalic acid, which has two ioniz- able protons, and benzoic acid, which has one, is treated with T00.0 mL of 0.1000 M NaOH. The excess NaOH is titrated with 20.00 mL of 0.2000 M HCI. Find the mass % of benzoic acid. ruse in for

4.75 An unknown amount of acid can often be determined by adding an excess of base and then "back-titrating" the excess. A 0.3471-g sample of a mixture of oxalic acid, which has two ioniz- able protons, and benzoic acid, which has one, is treated with T00.0 mL of 0.1000 M NaOH. The excess NaOH is titrated with 20.00 mL of 0.2000 M HCI. Find the mass % of benzoic acid. ruse in for

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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An unknown amount of acid can often be determined byadding an excess of base and then “back-titrating” the excess. A 0.3471-g sample of a mixture of oxalic acid, which has two ion-izable protons, and benzoic acid, which has one, is treated with100.0 mL of 0.1000 M NaOH. The excess NaOH is titrated with20.00 mL of 0.2000 M HCl. Find the mass % of benzoic acid.