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 26.00 mL of a colorimetric reagent, and the nitrite was converted to a colored product that produced a blank-corrected absorbance of 0.340. To 53.00 mL of the original sample, 1.00 mL of a standard solution of 1.00 x 10-3 M nitrite was added. The same color-forming procedure was followed, and the new absorbance was 0.500. What was the concentration of nitrite in the original undiluted sample? 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 26.00 mL of a colorimetric reagent, and the nitrite was converted to a colored product that produced a blank-corrected absorbance of 0.340. To 53.00 mL of the original sample, 1.00 mL of a standard solution of 1.00 x 10-3 M nitrite was added. The same color-forming procedure was followed, and the new absorbance was 0.500. What was the concentration of nitrite in the original undiluted sample? Concentration = ______ M
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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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 26.00 mL of a colorimetric reagent, and the nitrite was converted to a colored product that produced a blank-corrected absorbance of 0.340. To 53.00 mL of the original sample, 1.00 mL of a standard solution of 1.00 x 10-3 M nitrite was added. The same color-forming procedure was followed, and the new absorbance was 0.500. What was the concentration of nitrite in the original undiluted sample?
Concentration = ______ M
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