Determine the value of the slope (m), y-intercept (b), and the coefficient of determination (r²) (A) m = 0.1128; b = -4.0 x 10-5; r² = 0.9762 (B) m = 0.1128; b = -3.0 x 10-³; r² = 0.9880 m = 0.1128; b = -4.0 x 10-5; r2 = 0.9880 (D) m = 0.1128; b= -3.0 x 10-³; r² = 0.9762
Determine the value of the slope (m), y-intercept (b), and the coefficient of determination (r²) (A) m = 0.1128; b = -4.0 x 10-5; r² = 0.9762 (B) m = 0.1128; b = -3.0 x 10-³; r² = 0.9880 m = 0.1128; b = -4.0 x 10-5; r2 = 0.9880 (D) m = 0.1128; b= -3.0 x 10-³; r² = 0.9762
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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A water sample was analyzed for Fe content using the iron-phenanthroline method. The following data were obtained from the analysis:
Transcribed Image Text:Determine the value of the slope (m), y-intercept (b), and the coefficient of determination (r²)
(A) m = 0.1128; b = -4.0 x 10-5; r² = 0.9762
(B) m = 0.1128; b = -3.0 x 10-³; r² = 0.9880
m = 0.1128; b = -4.0 x 10-5; r2 = 0.9880
(D) m = 0.1128; b= -3.0 x 10-³; r² = 0.9762
Transcribed Image Text:Reagent Blank Absorbance
Reagent Blank Absorbance
Concentration of Stock Solution: 10 ppm
Volume of Stock
Solution (mL)
Total Volume of
Standard Solution
(mL)
0.50
10.00
1.00
10.00
2.00
10.00
3.00
10.00
4.00
10.00
5.00
10.00
Volume of
Unknown Solution
Trial
(mL)
1
5.00
2
5.00
3
5.00
Absorbance (au)
0.003
Concentration of
Standard Solution
(ppm)
Total Volume of
Unknown Solution
(mL)
10.00
10.00
10.00
Absorbance (au)
0.012
0.132
0.267
0.349
0.428
0.560
Absorbance (au)
0.289
0.296
0.281
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