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Name: The sulfate ion concentration in natural water can be determined by me
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Description: The sulfate ion concentration in natural water can be determined by measuring the turbidity that results when an excess of BaCl2 is added to a measured quantity of the sample. A turbiditimeter, the instrument used for this analysis, was calibrated wi

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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The sulfate ion concentration in natural water can be determined by measuring the turbidity that results when an excess of BaCl2 is added to a measured quantity of the sample. A turbiditimeter, the instrument used for this analysis, was calibrated with a series of standard Na2SO4 solutions. The following data were obtained for the calibration:

3. The sulfate ion concentration in natural water can be determined by measuring the turbidity
that results when an excess of BaCl2 is added to a measured quantity of the sample. A
turbiditimeter, the instrument used for this analysis, was calibrated with a series of standard
Na2SO4 solutions. The following data were obtained for the calibration:
Cx , mg SO4- /L
0.00
Turbiditimeter reading, Y
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 concentration.
a) Derive an equation of a line that tells us the relationship of Cx and Y.
b) What is the concentration of sulfate when the turbiditimeter reading was 3.67?

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