Nitrite (NO2) can be determined by oxidation with excess Ce4*, followed by back titration of the unreacted Ce4*. A 4.030-g sample of solid containingonly NANO2 (FM 68.995) and NANO3 was dissolved in 500.0 mL. A 25.00-mL sample of this solution was treated with 50.00 ml of 0.118 6 M Ce4*in strongacid for 5 min, and the excess Ce4* was back-titrated with 31.13 ml of 0.04289 M ferrous ammonium sulfate. Calculate the weight percent of NANO2 inthe solid.2Ce** + NO, + H2O → 2Ce³* + NO, + 2H*Ce*+ + Fe2+ → Ce³+ + Fe3+Show your solutions by sending your answers.

CHEM 108b labChemical Reactivity in the MarineEnvironmentProfessor Rachel Narehood…

Nitrite (NO2) can be determined by oxidation with excess Ce4*, followed by back titration of the unreacted Ce4*. A 4.030-g sample of solid conto only NANO2 (FM 68.995) and NaNO3 was dissolved in 500.0 mL. A 25.00-mL sample of this solution was treated with 50.00 mL of 0.118 6 M Ce4*in: acid for 5 min, and the excess Ce4* was back-titrated with 31.13 mL of 0.04289 M ferrous ammonium sulfate. Calculate the weight percent of Na he solid. 2Ce** + NO, + H2O → 2Ce³*+ + NO, + 2H* E3+

Nitrite (NO2) can be determined by oxidation with excess Ce4, followed by back titration of the unreacted Ce4. A 4.030-g sample of solid conto only NANO2 (FM 68.995) and NaNO3 was dissolved in 500.0 mL. A 25.00-mL sample of this solution was treated with 50.00 mL of 0.118 6 M Ce4in: acid for 5 min, and the excess Ce4 was back-titrated with 31.13 mL of 0.04289 M ferrous ammonium sulfate. Calculate the weight percent of Na he solid. 2Ce** + NO, + H2O → 2Ce³+ + NO, + 2H E3+

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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