7-15. A cyanide solution with a volume of 12.73 mL was treated with 25.00 mL of Ni²+ solution (containing excess Ni?+) to convert the cyanide into tetracyanonickelate(II): 4CN + Ni²+ → Ni(CN); The excess Ni²+ was then titrated with 10.15 mL of 0.013 07 M ethylenediaminetetraacetic acid (EDTA): Ni?+ + EDTA'- → Ni(EDTA)² Ni(CN); does not react with EDTA. If 39.35 mL of EDTA were required to react with 30.10mL of the original Ni²+ solution, calculate the molarity of CN in the 12.73-mL cyanide sample.

7-15. A cyanide solution with a volume of 12.73 mL was treated with 25.00 mL of Ni²+ solution (containing excess Ni?+) to convert the cyanide into tetracyanonickelate(II): 4CN + Ni²+ → Ni(CN); The excess Ni²+ was then titrated with 10.15 mL of 0.013 07 M ethylenediaminetetraacetic acid (EDTA): Ni?+ + EDTA'- → Ni(EDTA)² Ni(CN); does not react with EDTA. If 39.35 mL of EDTA were required to react with 30.10mL of the original Ni²+ solution, calculate the molarity of CN in the 12.73-mL cyanide sample.

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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