Answered: unknown acid, which can be either…

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 student is given 1.52 g of an unknown acid, which can be either oxalic acid, H₂C₂O₄, or citric acid, H₃C₆H₅O₇. To determine which acid she has, she titrates the unknown acid with 0.650 M NaOH. The equivalence point is reached when 52.0 mL are added. Answer the following questions to determine the identity of the unknown acid.

1. How many moles of NaOH are consumed?

Moles of NaOH = _____ mol

2. How many moles of H⁺ acid are available to react if the acid is H₂C₂O₄?

0.0403 mol NaOH

Moles of H⁺ from H₂C₂O₄ = ___ mol

3. How many moles of H⁺ are available to react if the acid is H₃C₆H₅O₇?

0.0403 mol NaOH

0.0573 mol H⁺ from H₂C₂O₄

Moles of H⁺ from H₃C₆H₅O₇ = ___ mol

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