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.
Chapter16: Applications Of Neutralization Titrations
Section: Chapter Questions
Problem 16.10QAP
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In the determination of sulphate ion concentration in natural water a turbidimeter was
calibrated with a series of standard Na2SO4 solutions. The following data were obtaíned
in the calibration:
Cx,mg SO42/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.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F4f7c5f7e-89d1-4748-8cce-53cd32114987%2F5967be83-60d0-4c0d-836c-43d1db783073%2Fgbx361_processed.jpeg&w=3840&q=75)
Transcribed Image Text:4
In the determination of sulphate ion concentration in natural water a turbidimeter was
calibrated with a series of standard Na2SO4 solutions. The following data were obtaíned
in the calibration:
Cx,mg SO42/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.
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