The method of standard additions was used to determine nitrite in a soil sample. A 1.00-mL portion of the sample was mixed with 22.00 mL of a colorimetric reagent, and the nitrite was converted to a colored product that produced a blank-corrected absorbance of 0.350. To 54.00 mL of the original sample, 1.00 mL of a standard solution of 1.00 × 10-³ M nitrite was added. The same color-forming procedure was followed, and the new absorbance was 0.560. What was the concentration of nitrite in the original undiluted sample? -3 Concentration = M

The method of standard additions was used to determine nitrite in a soil sample. A 1.00-mL portion of the sample was mixed with 22.00 mL of a colorimetric reagent, and the nitrite was converted to a colored product that produced a blank-corrected absorbance of 0.350. To 54.00 mL of the original sample, 1.00 mL of a standard solution of 1.00 × 10-³ M nitrite was added. The same color-forming procedure was followed, and the new absorbance was 0.560. What was the concentration of nitrite in the original undiluted sample? -3 Concentration = M

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter1: The Nature Of Chemistry

Section: Chapter Questions

Problem 76QRT

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