4 In the determination of sulphate ion concentration in natural water a turbidimeter was calibrated with a series of standard NazSO4 solutions. The following data were obtained in the calibration: Cx,mg SO4/L Turbidimeter reading, R 0.00 0.06 5.00 1.48 10.00 2.28 15.00 3.98 20.00 4.61 Assume that a linear relationship exists between the instrument reading and the concentration. a) Using a graph paper or Excel plot this data accurately b) Calculate the least-squares slope and intercept and write the equation of the line.

4 In the determination of sulphate ion concentration in natural water a turbidimeter was calibrated with a series of standard NazSO4 solutions. The following data were obtained in the calibration: Cx,mg SO4/L Turbidimeter reading, R 0.00 0.06 5.00 1.48 10.00 2.28 15.00 3.98 20.00 4.61 Assume that a linear relationship exists between the instrument reading and the concentration. a) Using a graph paper or Excel plot this data accurately b) Calculate the least-squares slope and intercept and write the equation of the line.

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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