Answer question #3 of this problem Answer all questions completely.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) standarddeviation 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 = 0.7103.The following molar concentrations were obtained from replicate standardization of asolution:0.5026, 0.5029, 0.5023, 0.5031, 0.5025, 0.5032, 0.5027 and 0.5026. Calculate the confidenceinterval at 95 and 99% level. t95% = 2.36; t99% = 5.30

3. The following molar concentrations were obtained from replicate standardization of a solution: 0.5026, 0.5029, 0.5023, 0.5031, 0.5025, 0.5032, 0.5027 and 0.5026. Calculate the confidence interval at 95 and 99% level. t95% = 2.36; t99% = 5.30

3. The following molar concentrations were obtained from replicate standardization of a solution: 0.5026, 0.5029, 0.5023, 0.5031, 0.5025, 0.5032, 0.5027 and 0.5026. Calculate the confidence interval at 95 and 99% level. t95% = 2.36; t99% = 5.30

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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