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The student collected the following data he prepared solutions ranging from 0.000 to 0.500 ppm and measured the instrumental reading corresponding to each of the solutions prepared: Xi yi 0.000 0.00 0.100 12.36 0.200 24.83 0.300 35.91 0.400 48.79 0.500 60.42 i) Use the method of least squares to calculate the equation of the best straight line going through these

The student collected the following data he prepared solutions ranging from 0.000 to 0.500 ppm and measured the instrumental reading corresponding to each of the solutions prepared: Xi yi 0.000 0.00 0.100 12.36 0.200 24.83 0.300 35.91 0.400 48.79 0.500 60.42 i) Use the method of least squares to calculate the equation of the best straight line going through these

Chemistry
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 student collected the following data he prepared solutions ranging from 0.000 to 0.500 ppm and measured the instrumental reading corresponding to each of the solutions prepared: yi 0.000 0.00 0.100 12.36 0.200 24.83 0.300 35.91 0.400 48.79 0.500 60.42 i) Use the method of least squares to calculate the equation of the best straight line going through these points ii) Calculate the amount of unknown in your sample if the unknown reading is 40.35 iii) If blank standard deviation was 0.014. Calculate: 1. LOD, 2. LOQ, 3. Sensitivity
Transcribed Image Text:The student collected the following data he prepared solutions ranging from 0.000 to 0.500 ppm and measured the instrumental reading corresponding to each of the solutions prepared: yi 0.000 0.00 0.100 12.36 0.200 24.83 0.300 35.91 0.400 48.79 0.500 60.42 i) Use the method of least squares to calculate the equation of the best straight line going through these points ii) Calculate the amount of unknown in your sample if the unknown reading is 40.35 iii) If blank standard deviation was 0.014. Calculate: 1. LOD, 2. LOQ, 3. Sensitivity
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