1. Replicate water samples are analyzed for water hardness with the following results: 102.2, 102.8, 103.1 and 102.3 ppm CaCO3. Calculate the a) average deviation b) standard deviation c) range. 2. Given the following data on the establishment of the precision of a method: 22.23, 22.18, 22.25, 22.09 and 22.17%. Is 22.09 % a valid measurement at 95% confidence level? Qtab = 0.710

1. Replicate water samples are analyzed for water hardness with the following results: 102.2, 102.8, 103.1 and 102.3 ppm CaCO3. Calculate the a) average deviation b) standard deviation c) range. 2. Given the following data on the establishment of the precision of a method: 22.23, 22.18, 22.25, 22.09 and 22.17%. Is 22.09 % a valid measurement at 95% confidence level? Qtab = 0.710

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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