5. Nitrite (NO2) was measured by two methods in rainwater and unchlorinated drinking water.The results + standard deviation (number of samples) are given in the following table:Gas ChromatographySpectrophotemetryRainwater:0.069 + 0.005 mg/L (n 7)0.063 0.008 mg/L (n = 5)Drinking Water:0.078 + 0.007 mg/L (n 5)0.087 + 0.008 mg/L (n = 5)(a) Do the two methods agree with each other at the 95% confidence level for both rainwaterand drinking water?(b) For each method, does the drinking water contain significantly more nitrite than therainwater (at the 95% confidence level)?6. The level of arsenic in a rice samnle uan

The two methods are: • chromatography •spectrophotometry

Answered: The results + standard deviation…

Science

Chemistry

The results + standard deviation (number of samples) are given in the following table:

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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